Google threat hunters spotted yet another Chinese state-sponsored espionage group that for years had burrowed into systems belonging to government and private organizations to steal data across academia, medicine, military, cybersecurity and foreign policy. 

Google Threat Intelligence Group discovered the previously unknown threat group UNC6508, which targeted organizations in the United States and Canada, in late 2025 but traced its earliest known compromise back to September 2023. 

The revelation mirrors an alarming pattern of Chinese espionage groups dropping backdoors into critical infrastructure to pre-position for potential sabotage, intercept research and steal data with national security implications. These groups working at the behest of China’s government, including UNC6508, operated in stealth for years before authorities or researchers discovered their activity.

“We don’t know the full extent or impact of the campaign,” Patrick Whitsell, senior security engineer at GTIG, told CyberScoop. Researchers said the threat group intruded a medical research university in September 2023, stole credentials and communications, and remained active on the institution’s systems through November 2025 when it was discovered.

Google said it confirmed multiple victims compromised with INFINITERED, a custom backdoor the threat group deployed on targeted networks to steal administrative credentials after it exploited externally facing REDCap (Research Electronic Data Capture) servers.

Researchers still don’t know how UNC6508 gained initial access to the REDCap servers. Google said the survey and database software, which was created at Vanderbilt University and issued multiple patches for critical remote-code execution vulnerabilities throughout 2023, is widely used across the medical research community. 

“Given the breadth of the threat actor’s intelligence collection criteria and their ability to remain undetected within compromised networks for more than a year, we assess the known victims likely represent only a fraction of a larger campaign,” Whitsell said. “We also assess that this highly capable threat actor will remain active and continue to be a threat to the defense, technology and medical industries for the foreseeable future.”

Google said the campaign targeted clinical providers, academic medical centers and U.S. military health institutions, demonstrating advanced capabilities from a threat group that doesn’t currently overlap with any other publicly known groups.

The threat group abused domain compliance rules to steal data, a technique that doesn’t rely on malware or living-off-the-land tools, and routed traffic through U.S.-based IPs to blend in with legitimate traffic, researchers said.

“We have some evidence to suggest this is a large threat group with multiple sub-teams, but this is not confirmed,” Whitsell said.

Like other previously identified China state-sponsored espionage groups, UNC6508 remains active.

Google said it disrupted some of UNC6508’s known infrastructure by disabling an Gmail account it used to exfiltrate data, notified the affected organizations and helped remediate compromises before it published research on UNC6508’s activities.

Whitsell said several unconfirmed instances of compromise remain under investigation.

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The FBI, along with Google and Lumen Technologies, took down a major cybercrime network based in China that was responsible for an estimated $1.9 billion in losses, officials said Friday. 

Outsider, which provided phishing kits and hosted infrastructure for cybercriminals since July 2023, facilitated a wave of phishing attacks against people and businesses in 55 countries, including the United States, the FBI said in a LinkedIn post.

The jointly coordinated effort dubbed “Operation Ghost Hook” netted the seizure of several domains of the group’s core admin servers, a Shopify storefront, roughly $100,000 from Outsider payment wallets and thousands of domains registered through U.S.-based providers, officials said.

The FBI said it also used an Outsider Telegram bot to access information on the cybercrime network’s customers.

“The criminals behind Outsider Enterprise built a business out of impersonating trusted brands to defraud hundreds of thousands of victims,” Brett Leatherman, assistant director of the FBI’s cyber division, said in a statement.

Authorities traced Outsider’s phishing domains to nearly 3.9 million stolen credit cards.

Google, one of the vendors impersonated by the phishing kits, described Outsider as a massive AI-powered operation. 

Outsider provided its phishing kit, which allowed cybercriminals to create fake sites and phishing campaigns to steal credit cards, bank account credentials and personal data, for a weekly subscription as low as $88 per week, the company said in a civil lawsuit it filed to dismantle the cybercrime network’s infrastructure. 

The China-based group behind the operation encouraged and provided step-by-step instructions for customers to use Gemini and other AI platforms to generate custom code for phishing lures and corresponding sites for illegitimate missed packages, overdue highway tolls, parking violations, issues with a brokerage account or wireless carrier rewards.

“The Outsider software allows scammers to request multiple types of verification from victims, including SMS, PIN, email and app verification,” Google wrote in the lawsuit filed in the U.S. District for the Southern District of New York. “This flexibility enables the enterprise to defeat various forms of authentication security.”

Google said it’s working with AT&T, T-Mobile and Verizon to intercept the spam messages before they reach customers, but these types of phishing attacks are prevalent and have been spreading for years. 

Google is also pushing for legislative action, including a series of bills, to combat these scams, General Counsel Halimah DeLaine Prado wrote in a blog post.

“Litigation alone won’t end this,” she wrote. “As threats evolve, our laws must, too.”

Google said it doesn’t know the real names of the people or entities involved in Outsider, but said the operation is supported by multiple cybercrime groups providing different roles with overlapping infrastructure.

The FBI said the takedown was part of Operation Riptide, an ongoing campaign targeting cybercriminals and the infrastructure and financial networks they use to commit fraud.

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OpenAI’s threat intelligence team tracked what it believes are two distinct clusters of activity online from groups with ties to China and posting content seemingly designed to stoke anger around divisive topics like AI and data centers.

The first, dubbed “Data Center Bandwagon,” used ChatGPT to create imagery and social media comments claiming data center buildouts were raising electricity prices for Americans.

Another used the tool to develop images and online posts characterizing tariffs as a covert means for the countries to exert control over the global technological landscape. According to OpenAI, the originating prompts directed ChatGPT to only include U.S. President Donald Trump in this content, while leaving out Chinese President Xi Jinping, who has also made use of tariffs.  

In both cases, OpenAI said the operators “likely originated” in China. The anti-data center content was traced to an unnamed Chinese technology company that holds multiple contracts with regional Chinese governments, and both clusters used VPNs to evade restrictions, prompted ChatGPT in simplified Chinese and asked for both English and Chinese-language outputs, all while posing as Americans on social media platforms like X and YouTube.

“This looks like a classic example of a foreign influence operation jumping onto the bandwagon of a genuine and pre-existing domestic debate and trying to manipulate it by using fake accounts posing as Americans,” online, said Ben Nimmo, principal investigator at OpenAI and author of the report. 

While OpenAI – which has sought to raise hundreds of millions of dollars in funding to build datacenters in the U.S. – is not a neutral party, the report does not claim that anti-data center sentiment in the country is being driven or bolstered by foreign propaganda online.

There’s little evidence that the campaigns got much attention outside their own amplification networks. Such engagement from third parties is an imperfect but important indicator of an influence operation’s impact. OpenAI rated the campaigns a 1 and 2 on the Bookings breakout scale, scores that indicate activity on one or more platforms but no evidence of meaningful engagement by targeted audiences.

Additionally, researchers who study state-sponsored influence campaigns say these groups are happy to latch onto and amplify genuine domestic movements or messaging so long as it serves their larger destabilization goals.

Others have suggested that piggybacking off established narratives with organic momentum – like public anger at AI and data centers – can make an influence operation appear more effective.

While AI tools can be leveraged to create such internet content at scale, they often fail to gain traction. Some images used by Chinese actors appear clunky or use overly direct messaging that display a lack of familiarity with both the English language and internet virality.

“I do want to be really clear here: this was not a case of an influence operation creating a debate,” said Nimmo. “The debate existed already. This was an influence operation from China trying to interfere in it. We didn’t see any signs that it succeeded.”

He added that while such views are “reasonable” and “sincerely held” by many participants on both sides, “what we don’t want to see is a covert foreign influence operation posing as Americans to try to shape it, still less a foreign influence operation using the very AI that it attacks.”

According to the OpenAI report, the actors used ChatGPT to edit work reports which contained operational security details about their social media campaigns. In them, they described their goals as “establishing persistent and credible accounts, producing visually appealing content to expand audience reach in different regions and maintaining long term account viability by anticipating platform enforcement.”

Another report fed into ChatGPT discussed how best to leverage Facebook’s content ecosystem, groups, pages, hashtags, advertising tools, recommendation systems and reporting mechanisms, as well as strategies for evading Meta’s detection of coordinated inauthentic accounts.

The campaign around tariffs also used ChatGPT to create short comments, comics in English but also Italian, Japanese and traditional Chinese accusing the US of putting profits over loyalty to its allies. OpenAI said they were targeted by the same network on X with an influence campaign alleging a widespread user data breach that Nimmo said “never happened.”

While OpenAI said the campaigns likely originated in China, they do not directly attribute the operations to the Chinese government or actors working on their behalf, but do note that many parts of the campaign and its tactics overlap with pre-established Chinese government propaganda campaigns online.

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House Democrats criticized a draft Republican Department of Homeland Security spending bill Thursday that they said would cut funding for the Cybersecurity and Infrastructure Security Agency by $250 million.

Republicans said the bill provides $2.4 billion for CISA, and that among its focuses are “improving cybersecurity resilience,” in the words of House Appropriations Chairman Tom Cole, R-Okla.

But Democrats decried it as a funding reduction. The panel’s subcommittee on homeland security is set to vote on the bill Friday.

The fiscal 2027 funding measure “dramatically cuts funding for cybersecurity and infrastructure protection despite an increasing number of sophisticated attacks from foreign adversaries against U.S. businesses, health care systems, utilities, schools, and state and local governments,” Democrats said in a fact sheet.

They also said it limits DHS’s ability to counter foreign propaganda seeking to undermine U.S. democracy, and to protect states against foreign groups during the elections.

The second Trump administration has sought deep cuts in CISA’s personnel numbers and budget in both fiscal 2026 and 2027, drawing concerns from both sides of the aisle.

Congress last year sought to implement some, but not all, of Trump’s proposed cuts for the agency, advancing legislation to set its budget at $2.6 billion.

In their fact sheet, Republicans said they were reallocating $100 million from past appropriations to fund CISA’s core missions.

They acknowledged some cutbacks, saying that the bill “Includes strategic reductions to redundant, unauthorized, or duplicative contracts, positions, and programs.”

Despite the cutbacks at CISA over the last year and a half, officials have talked about wanting to hire additional personnel. The fiscal 2027 bill includes “$31 million to hire mission critical positions to counter threats from foreign adversaries, such as China,” according to the GOP.

The GOP also highlighted other cyber funds in the DHS bill. DHS’s management director would get $11.3 million for “enhanced cybersecurity protections,” while the Homeland Security Investigations division of Immigration and Customs Enforcement would get $5 million for the Cyber Crime Center.

Neither panel Republicans nor Democrats responded to requests for comment seeking more detailed numbers for the fiscal 2027 bill.

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A House subcommittee will hold an open hearing next week on how frontier artificial intelligence models are shaping the cybersecurity landscape, for good and for ill.

The June 4 hearing will be the second the Homeland Security Subcommittee on Cybersecurity and Infrastructure Protection has held that was focused at least in part on the subject, following a similar hearing held in December. But unlike at that joint subcommittee hearing, where members also examined other emerging technologies, AI takes center stage next week.

It caps a series of closed-door meetings of the Homeland panel where members and staff have been evaluating the intersection of AI and cyber. CyberScoop is first to report details on the hearing.

The witnesses will be Sandra Joyce, vice president of Google Threat Intelligence; Chris Meserole, executive director of the Frontier Model Forum; Jack Cable, a former top official at the Cybersecurity and Infrastructure Security Agency and now chief executive officer and co-founder of Corridor Security; and Matthew Guariglia, senior policy analyst at the Electronic Frontier Foundation.

“Communist China is moving aggressively to control the technologies that will define the future of economic and military power, and few technologies are more consequential than artificial intelligence,” subcommittee chairman Andy Ogles, R-Tenn., said in a written statement. “Adversaries are already working to steal American AI capabilities, weaponize AI-enabled tools, infiltrate critical systems and undermine our national security.”

“AI is the America First mission of the future, and it is becoming our number one offensive and defensive weapon against cyber terrorists,” he continued. “I look forward to hearing from our witnesses on how we can stay ahead of AI-enabled cyber threats, protect the services Americans rely on and win this AI arms race.”

The hearing is the latest response from Capitol Hill to the spate of news about the capabilities of advanced AI models to uncover cyber vulnerabilities. Earlier this month, for instance, lawmakers wrote to National Cyber Director Sean Cairncross asking for a plan to deal with the potential surge in vulnerability discovery stemming from such models.

Last week, the Trump administration postponed a draft AI executive order. It’s something lawmakers are likely to ask about at next week’s hearing.

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Artificial intelligence is an “unstoppable force” that allows tech to be “weaponized just below the threshold of traditional warfare,” including in cyberspace, the head of a U.K. intelligence, security and cybersecurity agency said Wednesday.

We live in a world “where the latest frontier AI is rapidly unearthing fault lines in technologies our society relies on every single day,” said Anne Keast-Butler, director of the Government Communications Headquarters (GCHQ) spy agency. “The ground beneath our feet is shifting, and shifting fast. Which means cybersecurity has never been more important.”

She added; “we need to reimagine cybersecurity in the AI world.”

Keast-Butler said her agency has spent the last few months developing defensive capabilities that are integrated with agentic AI, and embedding it into its operations “responsibly and ethically.”

Her speech offered the view of one of the world’s cyber superpowers about how AI is evolving both cyber offense and defense. The GCHQ is the largest of the U.K.’s spy agencies and home to the National Cyber Security Centre.

The U.K.’s AI Security Institute recently reported on how advanced AI models have surpassed prior benchmarks for autonomously uncovering vulnerabilities. At the same time, government officials in Europe, the United States and elsewhere have warned about how AI will exacerbate cyber risks.

Keast-Butler said Wednesday that “warfare is being reconfigured; increasingly data-driven, AI-enabled, and automated in conflicts from Ukraine to Iran.”

Overall, “AI is an unstoppable force with great opportunity. But it’s also a force with risks,” she said. “As AI gains increased autonomy, we all have an intergenerational duty to harness and secure it for good; to protect our national security, our economy and our way of life.”

She warned about China’s arrival as a tech superpower, which includes its sophisticated cyber capabilities. She said China recognizes the value of AI combined with the availability of massive amounts of data.

And Russia is upping its use of hybrid warfare against both Ukraine and the U.K., Keast-Butler said, with both cyber and physical forces.

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A Chinese national allegedly involved in a massive, pandemic-era attack spree that compromised nearly 13,000 U.S. organizations was extradited from Italy to the United States and formally charged in federal court, the Justice Department said Monday.

Xu Zewei and his co-conspirators are accused of exploiting a string of zero-day vulnerabilities in Microsoft Exchange Server to steal research on COVID-19 vaccines, treatment and testing during the initial wave and subsequent height of the pandemic.

His alleged crimes, directed by China’s intelligence services, were part of a broader espionage campaign known as HAFNIUM, which targeted infectious disease experts, law firms, universities, defense contractors and policy think tanks, according to an indictment filed against Xu and Zhang Yu, who remains at large. 

The China state-sponsored threat group behind those attacks against Microsoft customers, and many other vendors’ customers since, is now more widely known as Silk Typhoon.

“Xu will now answer for his alleged role in HAFNIUM, a group responsible for a vast intrusion campaign directed by China’s Ministry of State Security that compromised more than 12,700 U.S. organizations,” Brett Leatherman, assistant director of the FBI’s Cyber Division, said in a statement.

“He is one of many contractors the Chinese government uses to obscure its hand in cyber operations, and others who do the same face the same risk,” he added.

Xu allegedly committed the attacks while working for Shanghai Powerock Network, one of many companies that conducted attacks for China’s various intelligence services, according to court records.

Italian authorities arrested Xu at the United States’ request in Milan in July. His capture underscores a window of opportunity U.S. officials and allies can take when nation-state attackers travel to countries that cooperate with the United States.

Italy extradited Xu to the United States Saturday but didn’t release his extradition orders until Monday, Simona Candido, his attorney in Italy, told CyberScoop.

Officials said Monday marked Xu’s first appearance in the U.S. District Court for the Southern District of Texas. He is currently being held at a federal prison in Houston.

“We have pursued this moment across years and continents, and the message this office sends today is the same one we sent when we first unsealed this indictment: we will work to protect the American people,” John G.E. Marck, acting U.S. attorney for the Southern District of Texas, said in a statement.

Xu allegedly worked under the direction of China’s Ministry of State Security’s Shanghai State Security Bureau to break into U.S. organizations’ networks, steal data and implant webshells for persistent remote access. Officials also accuse Xu of stealing information regarding U.S. policymakers and government agencies from a global law firm with offices in Washington. 

Microsoft first warned customers about the HAFNIUM campaign in March 2021. The FBI and Cybersecurity and Infrastructure Security Agency followed soon after with a joint advisory about the widespread compromise of Microsoft Exchange Server. 

“Today’s law enforcement action demonstrates the real-world consequences of this state-led activity, which is fueled by a vast network of private companies operating under the direction of the Chinese government,” Aaron Shraberg, senior team lead of global intelligence at Flashpoint, told CyberScoop.

“Extraditing these individuals from countries in coordination with international law enforcement demonstrates a united stance on these actions, and the importance of bringing real-world consequences to China’s notorious targeting of not just the American people and their businesses, but individuals globally as well,” Shraberg added.

Xu is charged with conspiracy to commit wire fraud; two counts of wire fraud; conspiracy to cause damage to and obtain information by unauthorized access to protected computers, to commit wire fraud, and to commit identity theft; two counts of obtaining information by unauthorized access to protected computers; two counts of intentional damage to a protected computer; and aggravated identity theft. 

The 34-year-old faces up to 62 years in prison for his alleged crimes.

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A state-sponsored hacking group has implanted a custom backdoor on Cisco network security devices that can survive firmware updates and standard reboots, U.S. and British cybersecurity authorities disclosed Thursday, marking a significant escalation in a campaign that has targeted government and critical infrastructure networks since at least late 2025.

The Cybersecurity and Infrastructure Security Agency and the United Kingdom’s National Cyber Security Centre jointly published a malware analysis report identifying the backdoor, code-named Firestarter. Cisco’s threat intelligence division, Talos, attributed the malware to a threat actor it tracks as UAT-4356. The company attributed the same group to a 2024 espionage campaign called ArcaneDoor, which focused on compromising network perimeter devices.

CISA confirmed it discovered Firestarter on a U.S. federal civilian agency’s Cisco Firepower device after identifying suspicious connections through continuous network monitoring. The finding prompted an updated emergency directive issued Thursday, requiring all federal civilian agencies to audit their Cisco firewall infrastructure and submit device memory snapshots for analysis by Friday.

A backdoor that outlasts patches

The central concern driving the updated directive is the attack group’s ability to persist on compromised devices, even after enterprises applied security patches Cisco released in September 2025. Those patches addressed two vulnerabilities — CVE-2025-20333, a remote code execution flaw in the VPN web server component, and CVE-2025-20362, an unauthorized access vulnerability — that UAT-4356 exploited to gain initial entry. According to CISA, devices compromised before patching may still harbor the implant.

Firestarter allows attackers to achieve persistence by manipulating the Cisco Service Platform mount list, a configuration file that governs which programs execute during the device’s boot sequence. When the device receives a termination signal or enters a reboot, the malware copies itself to a secondary location and rewrites the mount list to restore and relaunch itself after the system comes back online. 

Critically, a standard software reboot does not remove the implant. Only a hard reboot — physically disconnecting the device from its power supply — is sufficient to clear the persistence mechanism from memory, according to both CISA and Cisco.

From there, the malware injects malicious shellcode into LINA, the core networking and firewalling code of Cisco’s Adaptive Security Appliance and Firepower Threat Defense software. Once embedded, the malware intercepts a specific type of network request normally used for VPN authentication. When a request arrives containing a hidden trigger sequence, it executes code supplied by the attackers, giving them a backdoor into the device.

Ties to ongoing campaign

Cisco Talos noted that Firestarter shares significant technical similarities with a previously documented implant called RayInitiator, suggesting the tools share a common origin or development history within UAT-4356’s arsenal.

In the federal agency incident analyzed by CISA, the attackers first deployed a separate implant, called Line Viper, to gain access to device configurations, credentials, and encryption keys. Firestarter was installed shortly after, prior to Cisco’s September 2025 patches being applied to those specific devices. When the agency patched its systems, Firestarter stayed on the devices, and the actors used it to then redeploy Line Viper in March, nearly six months after the initial breach.

Cisco and CISA did not attribute the espionage attacks to a specific nation state, but Censys researchers previously said it found compelling evidence indicating a threat group based in China was behind the ArcaneDoor campaign. Censys noted it found evidence of multiple major Chinese networks and Chinese-developed anti-censorship software during its investigation into the early 2024 attacks.

The persistence vulnerability affects a broad range of Cisco hardware, including the Firepower 1000, 2100, 4100, and 9300 series, as well as the Secure Firewall 1200, 3100, and 4200 series.

Cisco has released updated software to address the persistence mechanism, though the company strongly recommends reimaging affected devices rather than relying solely on software updates where compromise is suspected.

The incident reflects a pattern increasingly seen among state-linked hackers: targeting the network edge devices that organizations rely on to enforce security boundaries. Because these appliances sit at the perimeter of enterprise and government networks, compromising them can expose internal traffic and give attackers a position to intercept credentials and communications.

CISA acknowledged active exploitation of the underlying vulnerabilities was ongoing at the time of publication.

A Cisco spokesperson told CyberScoop that customers needing assistance should contact Cisco Technical Assistance for support. CISA did not respond to a request for comment. 

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Campaigns employing commercial surveillance vendors tracked targets by exploiting mobile phone network vulnerabilities in what researchers said Thursday was the first-ever linking of “real-world attack traffic to mobile operator signalling infrastructure.”

The two unknown parties behind the campaigns mimicked the identities of mobile phone operators with customized surveillance tools, and manipulated signaling protocols and steered traffic through network pathways to hide, according to research from the University of Toronto’s Citizen Lab.

“Our findings highlight a systemic issue at the core of global telecommunications: operator infrastructure designed to enable seamless international connectivity is being leveraged to support covert surveillance operations that are difficult to monitor, attribute, and regulate,” a report published Thursday reads.

“Despite repeated public reporting, this activity continues unabated and without consequence,” Gary Miller and Swantje Lange wrote for Citizen Lab. “The continued use of mobile networks, built on a close inter-operator trust model and relied upon by users worldwide, raises broader questions for national regulators, policymakers, and the telecom industry about accountability, oversight, and global security.”

The attackers relied on identifiers and infrastructure associated with operators around the world, including networks based in Cambodia, China, the self-governing Island of Jersey, Israel, Italy, Lesotho, Liechtenstein, Morocco, Mozambique, Namibia, Poland, Rwanda, Sweden, Switzerland, Thailand, Uganda and the United Kingdom.

They shifted between SS7 and Diameter protocols, the signalling protocols known for 3G and 4G/most of 5G, respectively, according to the report. While Diameter was meant to be more secure than SS7, the Federal Communications Commission in 2024 opened a probe into both its vulnerabilities and SS7’s, and Sen. Ron Wyden, D-Ore., has asked for a Cybersecurity and Information Security Agency report about telecommunications vulnerabilities rooted in both protocols.

But identifying the vendors used in the two surveillance campaigns, or who was behind them, was beyond the researchers’ reach.

“The reality is that there are a number of known surveillance vendors and bad actors in this space, but given the opaque nature of telecommunications signalling protocols, those vendors are able to operate without revealing exactly who they really are,” Ron Deibert, director of Citizen Lab, wrote in his newsletter. “Much of the malicious things they are doing blend into the otherwise voluminous flow of billions of normal messages and roaming signals. They are ‘ghost operators’ within the global telecom ecosystem.”

One of the operators mentioned in Citizen Lab’s report, Israel-based 019 Mobile, wrote back that it didn’t recognize the hostnames referenced in the report as 019 Mobile’s network nodes, and couldn’t attribute the signaling activity it represents to 019 Mobile-operated infrastructure.

Another operator, Sure, said it has taken preventative measures to defend against misuse.

“Sure acknowledges that digital services can be misused, which is why we take a number of
steps to mitigate this risk,” CEO Alistair Beak said in a statement to CyberScoop. “Sure has implemented several protective measures to prevent the misuse of signalling services, including monitoring and blocking inappropriate signalling. Any evidence or valid complaint relating to the misuse of Sure’s network results in the service being immediately suspended and, where malicious or inappropriate activity is confirmed following investigation, permanently terminated.”

019 Mobile and a third operator, Tango Networks UK, didn’t respond to requests for comment from CyberScoop. The Citizen Lab report afforded some grace to the operators.

“It is important to note that the operator signalling addresses observed in the attacks do not necessarily imply direct operator involvement,” it states. “In some cases, access to the signalling ecosystem can be obtained through third-party providers, commercial leasing arrangements, or other intermediary services that allow actors to send messages using operator identifiers from legitimate networks.”

Updated 4/24/26: to include quote from Alistair Beak.

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U.S. and international government agencies warned Thursday about a “widespread shift” in Chinese hacker methods toward the use of large-scale covert networks that compromise common devices to carry out a variety of attacks.

The advisory details how those networks work, and defensive steps organizations should take.

“Over the past few years there has been a major shift in the tactics, techniques and procedures (TTPs) used by China-nexus cyber actors, moving away from the use of individually procured infrastructure, and towards the use of externally provisioned, large-scale networks of compromised devices,” the warning reads.

The U.K. National Cyber Security Centre, Cybersecurity and Infrastructure Security Agency, National Security Agency, FBI and agencies from Australia, Canada, Germany, Netherlands, New Zealand, Japan, Spain and Sweden joined forces on the advisory.

It says that “multiple covert networks have been created and are being constantly updated, and that a single covert network could be being used by multiple actors. These networks are mainly made up of compromised Small Office Home Office (SOHO) routers, as well as Internet of Things (IoT) and smart devices.”

It continues: “Covert networks are used to connect across the internet in a low-cost, low-risk, deniable way, disguising the origin and attribution of malicious activity.”

Chinese information security companies create and support the networks, evidence suggests, according to the agencies. Hackers use the networks for reconnaissance, malware delivery and stealing information, they said.

Examples of the use of covert networks include activities from groups known as Volt Typhoon to pre-position on U.S. critical infrastructure, and Flax Typhoon to conduct cyber espionage.

An example of a covert network is the botnet Raptor Train, which infected 200,000 devices worldwide. The networks are large, constantly evolving and with new ones being developed constantly.

At a speech this week, NCSC CEO Richard Horne said “we know that China’s intelligence and military agencies now display an eye-watering level of sophistication in their cyber operations.”

Defenses against covert networks aren’t “straightforward,” according to the advisory, but include an assortment of common good cybersecurity practices. The largest and most at-risk organizations should engage in active hunting, tracking and mapping covert networks, using threat reporting to create blocklists and more.

“Working closely with U.S. and international partners, CISA continues to identify and warn organizations of Chinese state-sponsored cyber actors threatening critical infrastructure,” CISA Acting Director Nick Andersen said Thursday. “This advisory informs organizations of how these actors are strategically using numerous, evolving covert networks at scale for malicious cyber activity.”

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National Cyber Director Sean Cairncross expects more executive orders coming from the White House as part of implementing the national cybersecurity strategy, he said Wednesday.

Staffers on Capitol Hill and others in the cyber world have been awaiting the implementation guidance the Trump administration had proclaimed would come to accompany the strategy  published last month.

Asked at a Semafor event about whether that would include executive orders, Cairncross answered, “I think that that’s the case.”

The administration released an executive order on fraud the same day it released its cyber strategy on March 6. Some of that order touched on cybercrime.

“This is rolling forward actively, and you should expect that there will be more execution and action in line with our strategic goals,” he said.

Cairncross cited another administration activity that fit into the strategy, such as the first conviction last week under the Take It Down Act, a law First Lady Melania Trump advocated for that seeks to combat non-consensual AI-generated sexually explicit images, violent threats and cyberstalking.

He declined to preview any future implementation plans, and said he expected they would be coming “relatively soon.”

A centerpiece of the administration strategy is confronting adversaries to make sure they suffer consequences for their hacking of United States targets.

Cairncross wouldn’t say explicitly if Trump, in his visit to Beijing next month, would address Chinese hacking.

“When we start to see things like prepositioning on critical infrastructure, that is something that needs to be addressed,” he said. Pressed on whether that meant cyber would be on the agenda during the visit, Caincross said, “I would expect that the safety and security of the American people will be first and foremost, as it always is for the president.”

Cairncross touted American ingenuity for producing an artificial intelligence model like Anthropic’s Claude Mythos, rather than it developing under U.S. cyber rivals like China or Russia. He acknowledged reports about the administration holding meetings about the cyber risks and benefits of something like Mythos — “the model right now that everyone’s talking about” — adding that the administration is looking to balance the dangers and positive capabilities of AI in cyberspace.

“I would say from the White House perspective, we are working very closely with industry,” Cairncross said. “We’ve been in close collaboration with the model companies across the interagency to make sure that we are evaluating and doing this.”

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On March 23, the Senate confirmed Senator Markwayne Mullin as the next homeland security secretary, marking an important step in strengthening leadership during a critical moment for our nation’s security.

But only half of the job is done.

The Cybersecurity and Infrastructure Security Agency (CISA), the federal government’s main civilian cyber defense agency, still lacks a Senate-confirmed director. As global cyber threats escalate,  this prolonged leadership gap poses a growing national security risk.

As Executive Director of the National Technology Security Coalition (NTSC), I represent Chief Information Security Officers who are responsible for protecting the systems that sustain America’s economy and critical infrastructure. In every sector, energy, healthcare, financial services, manufacturing, and transportation, there is a common concern: the threat landscape is growing more aggressive, and our defenses must stay ahead.

Our enemies are not waiting.

Since the start of the conflict with Iran, cybersecurity experts have reported increased malicious cyber activity targeting U.S. and allied systems. Iran-linked actors have shown their ability to disrupt operations and exploit vulnerabilities. Meanwhile, China continues its long-term effort to infiltrate American networks and position itself for possible disruption of critical infrastructure. Russia and its affiliated groups remain persistent, probing Western systems for weaknesses and exerting constant pressure.

This is the reality of modern conflict. Cyber operations have emerged as a primary domain of competition. In some cases, they can rival the effects of traditional military action, disrupting economies, communications, and public safety through code alone. 

Leadership is important in this environment.

CISA plays a key role in coordinating federal cyber defense, sharing threat intelligence with the private sector, and supporting state and local governments. It serves as the link between government and industry in protecting the nation’s digital infrastructure. Without a Senate-confirmed director, the agency’s ability to set priorities, coordinate efforts, and respond quickly is limited.

That challenge is growing more urgent. The President’s fiscal year 2027 budget plan proposes significant cuts to CISA’s funding. At a time when the agency faces increasing operational pressure, fewer resources make strong, steady leadership even more crucial.

This is the moment when Secretary Mullin’s leadership is critical.

As a former member of the Senate, Secretary Mullin understands the institution, its dynamics, and how to build consensus. He is uniquely positioned to connect with past colleagues and help advance Sean Plankey’s nomination as Director of CISA.

Plankey is highly qualified and widely respected in the cybersecurity community. His experience in the U.S. Coast Guard, at the Department of Energy securing the nation’s energy infrastructure, and in the private sector provides him with a clear understanding of both the threat landscape and the importance of public-private collaboration. At a time when coordination between government and industry is vital, these qualities are essential.

The Senate has already signaled that it takes cyberthreats seriously. It recently confirmed Lt. Gen. Joshua Rudd to lead U.S. Cyber Command and serve as director of the National Security Agency, ensuring strong leadership of America’s military cyber defense team.

Now it needs to do the same on the civilian side.

Confirming Plankey matters because the country’s main civilian cyber defense agency needs established leadership to combat adversaries who are already inside our networks, probing our systems, and preparing for the next phase of conflict.

The leadership gap at CISA has gone on long enough.

Secretary Mullin must engage. The Senate needs to act. And Sean Plankey should be confirmed without further delay.

America’s cyber defenses depend on it.

Chris Sullivan is the executive director of the National Technology Security Coalition, a nonprofit, non-partisan organization that serves as an advocacy voice for chief information security officers across the nation.

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When Google announced last month it was moving up its own internal timeline for migrating to quantum-resistant forms of encryption, it started a broader conversation in the cybersecurity and cryptography communities: Just what was pushing one of the largest tech companies in the world to significantly accelerate its adoption of post-quantum protections for its systems, devices and data?

In the weeks since, new research has lended weight to those claims. A joint research paper from the California Institute of Technology, its tech startup Oratomic and the University of California concluded that technological advancements in neutral atom arrays indicate a quantum computer capable of breaking classical encryption may require as few as 10,000 quantum bits (or qubits), not millions as previously thought.

Qian Xu, a CalTech researcher and coauthor of the paper, said the findings are significant and indicates that such a computer could potentially be operational by the end of the decade.

“For decades, qubit count has been viewed as the main obstacle to fault-tolerant quantum computing,” Xu said in a statement. “I hope our work helps shift that perspective.”

Google’s Quantum AI division released its own research paper around the same time, outlining a twenty-fold decrease in the number of physical qubits believed to be needed to break some of the most popular forms of 256-bit elliptic curve encryption algorithms used to currently protect cryptocurrencies.

“We note that while viable solutions like [post-quantum cryptography] exist, they will take time to implement, bringing increasing urgency to act,” wrote Ryan Babbush, director of research and Hartmut Neven, vice president of engineering at Google.

Google’s decision to accelerate its shift to post-quantum encryption reflects a growing consensus.  Over the past year, CyberScoop has heard similar concerns from tech and government officials, typically centered on two quantum-related threats facing governments and businesses today.

One is the capability of foreign nations and cybercriminals to collect sensitive, encrypted data today in the hopes of breaking it later with a quantum computer. This “harvest now, decrypt later” technique is one of the main reasons proponents push for faster adoption of post-quantum encryption.

The second stems from a string of notable quantum computing breakthroughs over the past two years, many led by researchers in China.

Andrew McLaughlin, chief operating officer for SandboxAQ, a Software-as-a-Service company that focuses AI and quantum computing technologies, said concerns can be summed up as “hardware, math and China.

Advancements in areas like neutral atom arrays have given scientists more powerful hardware, while breakthroughs in mathematics like that in the Google research paper have found ways to use that hardware more efficiently. 

But he also pointed to what he described as exciting (and worrying) advancements in the field from some of America’s greatest international rivals.

Beijing has invested heavily in quantum computing, empowering top scientists like Pan Jianwei, a professor at China’s University of Science and Technology, with the resources and support to push the boundaries of technological development and position China as a world leader in quantum science.

Late last year, Chinese state media reported that Huanyuan 1, a 100-qubit quantum computer developed by researchers at Wuhan University on a Chinese government grant program, had been approved for commercial use. The reports claim that orders worth more than 40 million yuan (or $5.6 million dollars) have already been processed in sales, including to subsidiaries at domestic telecom China Mobile and the government of Pakistan.

Experts say quantum computers pose a potentially exceptional threat to blockchain-based cryptocurrencies.

Nathaniel Szerezla, chief growth officer at Naoris Protocol, a company that develops quantum-resistant encryption for blockchain infrastructure, said the paper from Oratomic and Caltech has “shifted the timeline” for planning around quantum encryption, particularly for cryptocurrency and blockchain platforms.

The underlying assumption was a “fault tolerant” quantum computer (i.e. one capable of threatening classical encryption) would require millions of qubits, but the paper suggests that it may actually only need as few as 10,000 qubits.

“Ultimately, we have gone from planning for a threat two decades out to one that overlaps with systems actively being deployed and funded,” Szerezla said.

For digital assets like cryptocurrency, the implications are “immediate” because the private key encryption underpinning billions of dollars on the blockchain were never designed to withstand attacks from a quantum computer.

“Migrating a live blockchain to post-quantum standards is a different problem entirely from upgrading a centralized system,” Szerezla continued. “You are dealing with immutable ledgers, billions in locked liquidity, and decentralized governance that cannot mandate a coordinated upgrade.”

Not everyone believes that we are on the cusp of a quantum hacking apocalypse.

On BlueSky Matthew Green, a computer science professor and cryptography expert at Johns Hopkins University, called the Google and Oratomic papers a good “precautionary” analysis of the long-term challenge of quantum encryption.

However, he expressed skepticism that quantum computing had enough “lucrative immediate applications” to push the field beyond its foundational research stage to more practical applications. He also questioned whether some of the newer quantum-resistant algorithms vetted by NIST would truly stand up to a real quantum computer. They were designed to protect against a threat that is still largely theoretical, and several of the post-quantum algorithms initially evaluated by NIST have turned out to contain vulnerabilities that could be exploited by classical computers.

That’s if one does indeed arrive in the next decade. Green said this week that he’s not convinced quantum-enabled hacks will be something to worry about in his lifetime, though he acknowledged that prediction might “haunt him” someday.

Nevertheless, “I’d bet huge amounts of money against a relevant quantum computer by 2029 or even 2035,” he wrote.

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President Donald Trump’s fiscal 2027 budget would slash the Cybersecurity and Infrastructure Security Agency’s total by $707 million, according to a summary released Friday, which would deeply chop down an agency that already took a big hit in Trump’s first year.

Another budget document suggests a smaller — but still substantial — hit of $361 million, with the discrepancy possibly due to the comparison points amid budget uncertainty for CISA’s parent agency, the Department of Homeland Security. DHS and CISA did not immediately respond to a request for clarification.

“At the time the Budget was prepared, the 2026 appropriations bill for the Department of Homeland Security was not enacted, and funding provided by the last continuing resolution it had been operating under (Continuing Appropriations Act, 2026, division A of Public Law 119-37, as amended by division H of Public Law 119-75) had lapsed,” the budget summary notes. “References to 2026 spending in the text and tables for programs and activities normally provided for in the full-year appropriations bill reflect the annualized level provided by the last continuing resolution.”

By either measurement, the proposed budget would cut deeply into an agency that started the Trump administration at roughly $3 billion, and would be substantially below that if Congress enacts the latest blueprint. The budget appendix says CISA would end up with slightly more than $2 billion in discretionary funding under Trump’s plan. For fiscal 2026, appropriators sought to mitigate some of Trump’s proposed CISA reductions.

The 2027 budget summary recycles identical language from the 2026 budget summary, and makes references to ending programs that CISA has already shuttered.

“The Budget refocuses CISA on its core mission — Federal network defense and enhancing the security and resilience of critical infrastructure — while eliminating weaponization and waste,” the summary states in both the 2026 and 2027 documents.

It makes references to getting rid of things that have already been cut, like “external engagement offices such as council management, stakeholder engagement, and international affairs.” It talks about ending programs focused on censorship, something CISA under the Biden administration said it never had, and on “so-called” misinformation, which CISA said it ended during the former president’s term.

Mississippi Rep. Bennie Thompson, the top Democrat on the House Homeland Security Committee, criticized the budget proposal for CISA.

“Like the President’s cyber strategy, the President’s CISA budget reflects his utter lack of understanding of the urgency of the cyber threats we face and how to mobilize the government to help confront them,” he said in a statement to CyberScoop. “As of 2023, CISA was spending $2 million on countering information operations, an effort initially launched at the behest of Congressional Republicans during the first Trump Administration.

“There is nothing that justifies a reckless $700 million cut to CISA, particularly at a time of heightened tensions with Iran and an increasingly aggressive China,” he continued. “I am committed to working with my colleagues to push back against these cuts and ensure we can protect government and critical infrastructure networks.”

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A Chinese cyberespionage group has shifted its gaze back to Europe after years of focusing on other parts of the world, Proofpoint research published Wednesday found.

The surge began in mid-2025, with a bevy of issues bubbling up between China and Europe, the company said. Proofpoint labels the government-linked group TA416, but other companies track it as Twill Typhoon, Mustang Panda or other names.

“This renewed focus most heavily targeted individuals or mailboxes associated with diplomatic missions and delegations to NATO and the EU,” Proofpoint’s Mark Kelly and Georgi Mladenov wrote. “TA416’s return to European government targeting occurred during heightened EU–China tensions over trade, the Russia–Ukraine war, and rare earths exports, and commenced immediately following the 25th EU–China summit.”

Separately, the same group took up targeting the Middle East in March after the start of the conflict in Iran, something it had never been spotted doing before, Proofpoint found.

“This aligns with a trend observed by Proofpoint of some state-aligned threat actors shifting targeting toward Middle Eastern government and diplomatic entities in the aftermath of the war,” the firm said. “This likely reflects an effort to gather regional intelligence on the status, trajectory, and broader geopolitical implications of the conflict.”

TA416 was active in Europe in 2022 and 2023, coinciding with the onset of the Ukraine-Russia war, but stepped away from the continent afterward, according to the researchers. Its focus turned to Southeast Asia, Taiwan and Mongolia for a couple years.

The group’s focus on Europe through early 2026 used a variety of web bug and malware delivery methods, including setting up reconnaissance by dangling lures about Europe sending troops to Greenland. It also included phishing emails about humanitarian concerns, interview requests and collaboration proposals, Proofpoint said.

“During this period, TA416 repeatedly altered its initial infection chains while maintaining a consistent goal of loading the group’s customized PlugX backdoor via DLL sideloading triads,” the researchers wrote.

Proofpoint’s is not the only report of late about Chinese cyberespionage groups targeting Europe, with another focused on LinkedIn solicitations to NATO and European institutions.

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SAN FRANCISCO — Four former National Security Agency directors shared varying concerns about a lack of earnest and widespread response to growing threats in cyberspace during a discussion at the RSAC 2026 Conference on Tuesday.

Accelerating threats posed by artificial intelligence, China and cybercriminals at large are testing the country’s resolve and determination to foster meaningful public-private collaboration, the former commanders of U.S. Cyber Command said. 

While the four-star military officials remain confident in the country’s resources and people committed to defending the nation from cyberattacks, they voiced unease about challenges that could upend technological dominance and diminish a collective response to serious intrusions. 

“I think we’ve become numb to it,” retired Gen. Paul Nakasone said. “We continue to see these different intrusions, and intrusions have gotten to a size that the scale is just incredible to me.”

The nation and industry aren’t keeping up with adversaries amid a brain drain across the U.S. government,  the founding director of Vanderbilt University’s Institute of National Security said. 

“We’ve lost ground with regards to our outreach to the private sector” within the Cybersecurity and Infrastructure Security Agency, the Joint Cyber Defense Collaborative and NSA’s Cybersecurity Collaboration Center, Nakasone said. 

Retired U.S. Navy Admiral Mike Rogers also criticized the U.S. government for areas of inaction and decay. “I see a government that’s unwilling to expend political capital to really drive fundamental change in cyber, and it’s a reflection of the fact that politically we are so divided, and as a society we are so divided,” he said. 

“We’re the largest economy in the world. We don’t have a single federal privacy framework. We don’t have a single major piece of cyber legislation,” Rogers added. “That frustrates the hell out of me.”

Retired Gen. Keith Alexander, the first chief of U.S. Cyber Command, said the key players remain committed and are working as hard as ever to combat cyber threats. Yet, he’s concerned about what the nation is doing to confront China and all the ways it could inflict harm, particularly in the realm of AI.

“We will be challenged in this area. We will fight in this area, and it will be both the government and you all helping to protect this country to ensure that we live through it,” Alexander said.

The U.S. government’s collaborative efforts with private companies provides an incredible intelligence advantage, said retired Gen. Tim Haugh. But, he warned, China has replicated similar capabilities and pre-positioned itself inside critical infrastructure networks.

Under his leadership, Haugh said he tried to encourage debate among policymakers to consider more offensive responses to China’s malicious cyber activities, particularly actions that might be equivalent to effects that would occur in armed conflict. 

Frustration and mounting concern was palpable as the former NSA and U.S. Cyber Command bosses held court on stage together for the first time this week. 

“We’re starting to accept this, in some ways, as the price of living in the digital age. And we have not yet had a level of trauma that has driven fundamental behavioral change,” Rogers said. “We haven’t had thousands die. I hope we never do, don’t get me wrong, but it seems like we just haven’t had a level of pain that’s fundamentally shifted the calculus.”

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Researchers have discovered a second instance of suspected Russian hackers using iOS exploits, pointing to what they say are several foreboding trends.

iVerify, Lookout and Google collaborated on the research published Wednesday, a follow-up to earlier revelations about a similar exploit kit, Coruna. While the second kit — dubbed DarkSword — also targeted users in Ukraine, the scale is significant: iVerify estimated up to 270 million iPhone users could be susceptible, while Lookout told CyberScoop roughly 15% of all iOS devices currently in use are running iOS 18 or earlier versions and could be vulnerable to the exploit kit.

The research reveals a range of new details, as well as interesting patterns:

• Whereas Russian and Chinese hackers used Coruna with financial gain in mind, there are signs DarkSword could serve both financial and surveillance purposes, and/or could be used to inflict harm.
• Lookout observed that someone used a large language model to customize both Coruna and DarkSword.
• The discovery of DarkSword reinforces earlier concerns about a secondary exploit market, Lookout and iVerify said.
• DarkSword is the second “mass” iOS campaign discovered this month, with the first known one to be Coruna.
• Both kits suggest cyberattacks are migrating toward mobile phones as they make up a bigger portion of internet traffic, Rocky Cole, iVerify’s co-founder and chief operating officer, told CyberScoop.
• Google also found that DarkSword was used against targets in Saudi Arabia, Turkey, and Malaysia

DarkSword can exfiltrate saved passwords, crypto wallets, text messages and more, researchers found. Attackers are leveraging the exploit kit by first compromising Apple’s WebKit and then using WebGPU as a pivot point for sandbox escapes, according to Justin Albrecht, Lookout’s global director for mobile threat intelligence.

What’s less clear is who, exactly, is behind the exploit kit, other than the links to Russia. Cole said DarkSword is hosted on the same command and control infrastructure as Coruna, but is an entirely separate kit made by entirely separate people. Google has attributed the campaigns to a group it tracks as UNC6353, which it describes as a Russian-backed espionage group, as well as UNC6748 and Turkish commercial surveillance vendor PARS Defense. 

The attackers’ motives are also a bit opaque, mixing what appears to be both espionage and financial objectives. Albrecht noted there is precedent for this: Russian threat groups have targeted cryptocurrency in Ukraine before, notably with Infamous Chisel, an Android exploit kit deployed by Sandworm. 

“They’re probably well-funded, probably well-connected, but it’s confirmed that they’re stealing crypto. There is definitely a financial motivation,” Albrecht told CyberScoop. “Now, I think the big question is, depending on who the group is, is the financial motivation in this just to do damage to Ukrainians, or is it to steal crypto?”

Russia has been under heavy sanctions for a long time and is starting to have budget problems due to the ongoing war in Ukraine, he noted. “Why not start to fund their operations with stolen funds? It wouldn’t be outside the norm, although it would be a potential shift in their TTPs for Russian APTs in general,” Albrecht said. 

The kit could be handy for someone trying to do a “pattern of life” analysis, Cole said, and thus useful for surveillance and intelligence purposes.

He said a commercial spyware vendor might have made the kit with no target audience in mind, thus the “Swiss Army knife”-like quality of it. The major concern for Cole is that there’s apparently a growing market for these kinds of tools, and people may be lulled into a false sense of security about iPhones not being vulnerable.

Despite the sophistication of the exploits themselves, the threat actors behind DarkSword may not be particularly experienced, Albrecht said. None of the JavaScript or HTML code was obfuscated in any way, and the server-side component was labeled “Dark sword file receiver” — poor operational security for a seasoned Russian threat actor.

“Your experienced Russian threat actors, your APT29’s of the world, I would expect them to have better OPSEC,” Albrecht said.

One of the more unusual findings in the research is the clear presence of large language model-generated code. The server-side component of DarkSword, for instance, includes telltale signs of AI-generated code, complete with detailed notes and comments characteristic of LLM output.  It’s a development that effectively lowers the barrier to entry for deploying advanced mobile exploits, even among state-sponsored actors, Albrecht said.

All three research teams have been in contact with Apple about the findings, according to Albrecht, with Google likely in closest contact since they began investigating the threat in late 2025. In its blog, Google said it reported the vulnerabilities used in DarkSword to Apple in late 2025, and all vulnerabilities were patched with the release of iOS 26.3, although most were patched prior.

CLARIFICATION 3/18/26: Clarified the suspected origins of the DarkSword exploit kit and any links to tools developed for the U.S. government.

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National Cyber Director Sean Cairncross said Tuesday that the Trump administration isn’t aspiring to enlist the private sector to conduct offensive cyber operations, but instead to help the government by keeping them abreast of the threats they’re facing.

The recently-released national cyber strategy talks about incentivizing companies to disrupt the networks of adversaries.

“I’m not talking about the private sector, industry or companies engaging in a cyber offensive campaign,” Cairncross said at an event hosted by Auburn University’s McCrary Institute. “What I’m talking about are the technical capabilities, the ability of our private sector to illuminate the battlefield from what they’re seeing, to inform and share information so that the USG [U.S. government] can respond to get ahead of things.”

The idea of enabling U.S. companies to undertake disruptive or offensive campaigns against malicious hackers, or to at least aid in U.S. government offensive operations, has regained currency in some GOP circles in recent years. Some companies have shown an interest in doing so, especially if laws are changed to make it more viable.

That trend coincides with growing calls from Trump administration officials — and now the release of the cybersecurity strategy — to go on the offense against hackers, although Cairncross emphasized again that the strategy pillar to “shape adversary behavior” isn’t just about conducting cyber offensive campaigns, but to use other government mechanisms to put pressure on hackers, be they legal or diplomatic.

The government can go about shaping the “risk calculus” “in a more agile fashion” with private sector help, he said.

There’s an enormous amount of capability on the private sector side, and now we have a spear from the United States government… we are looking for real partnership,” Cairncross said.

One way the U.S. government has sought to bring the fight to cyber adversaries is the FBI’s “joint sequenced operations,” used to degrade their capabilities. Speaking at the same event, the head of the bureau’s cyber division said the private sector was key to those operations as well.

“Every one of the joint sequenced operations that the FBI conducts to remove that capacity and capability that I talked about — from the Russians, from the Chinese, from the Iranians and others — happens because a victim came forward and engaged the FBI,” said Brett Leatherman.

“One takeaway for everybody here is ‘What is your game plan in the event of a breach to engage your local FBI field office?’” he asked. “I would proffer there’s very little liability in doing so, and we’re happy to have conversations with your outside or inside counsel, but there’s a tremendous amount to be gained by doing that.”

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A cyberattack that an Iranian hacking group said it carried out against medical device manufacturer Stryker might mark Tehran’s first significant cyber action since the start of the joint U.S.-Israel conflict.

But even that may have been a happy accident for Iranian hackers in what has been a low buzz of activity during that timeframe, with the attackers striking paydirt by happenstance rather than on purpose.

Cybersecurity firms, threat intelligence trackers and critical infrastructure owners have been fighting to separate the noise about proclaimed attacks out of Iran, and the warnings and threats related to the conflict, from what is actually happening and poses any significant danger.

“Everybody is scrambling right now,” said Alex Orleans, a long-time Iran threat analyst and head of threat intelligence at Sublime Security. Others said the nascent nature of the conflict is making assessments difficult.

“What we see is quite difficult to quantify or characterize about whether there’s been an increase or decrease,” said Saher Naumaan, senior threat researcher at Proofpoint. “I think since we’re only a couple weeks into the conflict, and the regular cadence of Iranian actors isn’t very consistent, necessarily, we don’t have enough data points or enough time to really judge.”

Signs of activity

In the early days of the conflict, there were indications that physical attacks on Iran might have hampered Iranian retaliatory efforts or other cyber activity, as those who would carry out cyberattacks were probably “hiding in bunkers,” Orleans said, and as Iran suffered internet outages.

In recent days, however, the Stryker attack and other indicators suggest that Iranian cyber activity could be heating up.

“For several days following the outbreak of the conflict, there was a noted decrease in cyber threat activity emanating from Iran,” a group of industry information and sharing analysis centers warned Wednesday. “However, there are signs of life in Iranian offensive cyber operations.”

The Stryker attack stands out for both the size and location of the target, a Michigan-based medical device manufacturer with more than $25 billion in revenue in 2025.

But both Orleans and Sergey Shykevich, threat intelligence group manager at Check Point Research, said the attack has the hallmarks of an opportunistic one rather than a deliberate, focused one. The group claiming credit for the attack, Handala — a Ministry of Intelligence-linked outfit — is known more for seizing advantage of weaknesses they happen upon rather than doggedly pursuing particular targets.

Notably, Stryker is also the class of a military vehicle used by U.S. forces. That military connection, even if confused with the medical device manufacturer, could possibly explain why the company was a target.

Still, “it was a much higher-profile attack than we expected from Handala,” Shykevich said. “Unfortunately, it’s possible to define it as a relatively big success for them.”

There have been reports of other cyber activity that might be connected to the conflict. Albania said the email system of its parliament had been targeted, with Iranian hackers taking credit. There was the targeting of cameras from Iran-linked infrastructure in countries that Iran then launched missiles into. Poland said it was looking into whether Iran was behind an attempted cyberattack on a nuclear research facility.

Some of the claims don’t match reality. “There are many hacktivist groups that are very active in Telegram, but actually they don’t have any significant successes,” Shykevich said.

There are other cyber-related developments in the conflict, too, like espionage, the proliferation of artificial intelligence-fueled misinformation and the possibility of Russia or China helping out in cyberspace on Iran’s behalf, even if some experts doubt the likelihood of the latter.

How effective any of it has been is still unclear. Stryker, for instance, said the attack mainly affected its internal networks, although there were signs it might be affecting communications at hospitals, too.

But the damage might be beside the point. Orleans said the attacks could be psychological in nature, aimed at producing fear abroad and affirming hackers’ standing with domestic leaders in Iran during the conflict.

Even low-level defacement or distributed denial-of-service attacks can play a role.

“Coming into work and finding an Iranian flag on your workstation would be a little bit  disconcerting, because they’re letting you know that, ‘I can reach out and touch you,’” said Sarah Cleveland, senior director of federal strategy at ExtraHop and a former cyber officer in the U.S. Air Force.

Possible follow-up impacts

While primarily known as a medical supply company, Stryker has received sizable contracts with the military for hospital equipment and surgical supplies, for example. It is unclear whether the hackers intended to use Stryker’s military connection to exploit government systems.

The Pentagon has long warned of increased, complex cyberattacks against the defense industrial base, a vast network of companies — with disparate levels of cybersecurity — that the military relies on for advanced weaponry to basic stretchers. The DIB is often seen by adversaries as a backdoor into military systems.

While he did not directly address the Stryker hack, the Army’s principal cyber adviser, Brandon Pugh, outlined some of the challenges to the DIB and the service’s part in trying to protect it during a webinar Thursday in response to a question on the topic.

He said adversaries “right or wrong” see companies “as an extension of the military” and that they believe an attack on private industry would have a secondary impact on the armed forces.

“Some are very large, sophisticated multinational companies,” he said, noting that security needs across the DIB aren’t universal. “Others are very small companies that are lucky to have a director of IT, let alone a sophisticated cyber team, and I think that’s where it’s really important to lean into.”

Pugh said that agencies across the federal government have been working with the DIB to boost its resilience to attacks, and that the Army’s cyber effort emphasizes entrenching cybersecurity from the beginning of the acquisition process.

“Cyber can’t be an afterthought — not saying it is,” Pugh added. “I’d say the Army does a great job here, but making sure it’s never forgotten and is always considered along that way.”

Matt Tait, the CEO and president of MANTECH, said in response to a question about the Stryker attack and DIB protections that defending against such incidents includes leveraging government agreements and access, such as with the NSA, and quickly sharing information following an attack.

“To me, it’s about real time information sharing,” he said. “You need real time information sharing when you’re getting attacked to be able to actually share that information with the rest of industry, as well as with government, because they can actually share that information across” federal cybersecurity entities.

“If you want to do mission focused technology work, this is the world you have to live in, and that you should be sharing this information on a real time basis,” he added. “24 hours later, 48 hours later, I call that ambulance chasing. That’s too far after the fact from a cyber perspective.”

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