Leaked iOS spyware has some cybersecurity professionals raising urgent alarms about potential mass iPhone compromises, a development that pairs ominously with the recent discovery of two sophisticated iOS exploit kits.

At the same time, some other experts say Apple’s defensive features for iPhones remain elite. But several factors have created unprecedented circumstances: the public accessibility of a version of DarkSword, shortly after the discovery of the original version of DarkSword and the earlier discovery of a similar kit known as  Coruna, and a  growing market for iPhone exploits driven by their high value as targets.

Allan Liska, field chief information security officer at Recorded Future, said he was worried about what the leaked DarkSword version could do to “democratize” iPhone exploits.

“Right now, iPhone exploitations are among the most expensive to research/implement so they have been, largely, the realm of nation-states,” he said. “If anyone can exploit an iPhone, suddenly something that has managed to be relatively secure now is a much bigger attack surface.”

Google, iVerify and Lookout released research last week on DarkSword’s discovery, centered on Ukraine. Google also said it saw targeting in Saudi Arabia, Turkey and Malaysia. And that was before a version turned up on GitHub, a development TechCrunch first reported and Google and iVerify have analyzed. (The week before, iVerify and Google uncovered Coruna. Google declined to comment further for this story.)

“It’s extremely alarming that this leaked out on GitHub,” said Rocky Cole, co-founder of iVerify. “I would assume that it’s being used all around the world, and including here in the United States.”

Hundreds of millions of iPhones running iOS 18 could be vulnerable to DarkSword.

“I think that the top line issues here are pretty clear: people who have devices that are vulnerable should upgrade ASAP,” said Eva Galperin, director of cybersecurity at the Electronic Frontier Foundation. “It is very likely that these vulnerabilities are being used right now to exploit vulnerable devices at scale, which is unusual for Apple products.”

The propagation problem

Coruna was concerning enough for Apple that it took the rare step of backporting security updates to still older versions of iOS, Cole said. The fear, he said, was that it might be wormable — capable of spreading from one device via text message to everyone in a phone’s contact list.

But Cole said Apple hasn’t released similar security-focused updates to iOS 18, for reasons he doesn’t know.

Apple has emphasized the patches it has issued, urged users to update their phones and touted Lockdown Mode as a defense against spyware.

“Apple devices are designed with multiple layers of security in order to protect against a wide range of potential threats, and every day Apple’s security teams around the world work tirelessly to protect users’ devices and data,” said Apple spokesperson Sarah O’Rourke. “Keeping your software up to date is the single most important thing you can do to maintain the security of your Apple products, and devices with updated software were not at risk from these reported attacks.”

IPhones’ widespread use makes them high-value targets, fueling a thriving market for exploits. Coruna and DarkSword are indicators of this growing demand. 

“It’s time for organizations to start thinking of mobile security the way they think about desktop security, which is to say everyone knows how to secure their laptop,” Cole said. And for iPhone exploit hunting in particular, “you’re starting to see people do it at a mass level.” Furthermore, the resale market is such that exploits that once were exclusive are no longer, and AI makes it even easier to customize them in the code, he said. 

DarkSword has drawn federal attention: The Cybersecurity and Infrastructure Security Agency this week added vulnerabilities that DarkSword exploits to the list that federal agencies must patch.

The number of people still using iOS 18 is large, up to 25% of all iPhones. Cole said several factors are contributing to that, such as users being leery of iOS 26’s onboard artificial intelligence or the Liquid Glass interface.

Said Galperin: “There are many reasons why people do not keep their devices up to date, so when I tell people ‘just patch your stuff’ I think it is important to realize that there are circumstances under which this is easier said than done.”

Proven defenses despite expanding risks

Despite the concerns, Cole credited iPhone for its high security standards, in particular for its app store.

For Natalia Krapiva, senior tech-legal counsel at Access Now, a key takeaway is the worrisome proliferation of commercial spyware and cyber intrusion capabilities.

“This is exactly what human rights activists and digital security researchers have been warning governments and companies about: In the absence of effective regulation for the industry, these exploits will get out and end up in the hands of adversaries like Russia, China, Iran, or, as in the case of DarkSword, leaked online for any criminal to use,” she said.

On the other hand, Apple’s Lockdown Mode and Memory Integrity Enforcement are top-notch defensive measures, Krapiva said. We’ve yet to see a Lockdown Mode-enabled iPhone being infected with spyware, she said.

“I think we’ll keep seeing more attempts to exploit both Apple and Android devices as they improve their software and hardware security,” she said. “It’s the old cat-and-mouse game.”

Adam Boynton, senior enterprise strategy manager at Jamf, said what’s happened with Coruna and DarkSword is evidence of Apple’s success.

“What’s encouraging here is that Apple’s security model works,” he said. “Coruna skips devices running the latest iOS versions and avoids those with Lockdown Mode enabled entirely. That’s a strong validation of the defences Apple has built.

“DarkSword reinforces the same principle,” he continued. “Where Coruna targeted older iOS versions, DarkSword demonstrates that even relatively current releases can be targeted by determined actors. Apple moved quickly to patch the vulnerabilities involved, and devices running the latest iOS are protected.”

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Ivanti customers, including major government agencies, face mounting pressure as attackers expand their scope of targets to exploit a pair of vulnerabilities the vendor disclosed late January after in-the-wild attacks already occurred.

The Netherlands’ Dutch Data Protection Authority and the Council for the Judiciary confirmed both agencies were impacted by attacks linked to the Ivanti Endpoint Manager Mobile (EPMM) zero-day vulnerabilities, according to a notice sent to the country’s parliament Friday. The European Commission also said it found evidence of a cyberattack on its “central infrastructure managing mobile devices,” but it did not identify the vendor in a statement Thursday.

The attacks were publicly disclosed as researchers and threat hunters scrambled to assess the fallout and observed consistent waves of attacks linked to the Ivanti defects. As of Monday afternoon, Shadowserver scans identified 86 compromised instances based on artifacts of exploitation, Piotr Kijewski, CEO of the nonprofit, told CyberScoop.

Researchers last week warned that attacks involving the Ivanti zero-days would spread, repeating a common pattern following the vendor’s disclosure and a third party’s release of exploit code. The vulnerabilities — CVE-2026-1281 and CVE-2026-1340 — each carry a CVSS rating of 9.8 and allow unauthenticated users to execute code remotely in Ivanti EPMM.

Ivanti said a “very limited number of customers” were exploited before it disclosed the defects in a Jan. 29 security advisory, but has declined multiple requests to provide an updated victim count. 

The company released indicators of compromise and a detection script Friday to help customers hunt for potential impact, and thanked The Netherlands’ National Cyber Security Centre for contributing to the script’s development. “We are collaborating closely with our customers as well as trusted government and security partners,” a spokesperson for Ivanti said in a statement.

Attackers of various intents and origins are still compromising additional Ivanti EPMM instances, Kijewski said. Shadowserver is using initial artifacts provided by Saudi Arabia’s National Cybersecurity Authority to scan for webshells and other signs of exploitation, including system commands.

“These artifacts are likely not linked to the initial threat actor targeting the vulnerability. It is likely, however, these instances were compromised by multiple actors by now,” Kijewski said. “More is happening than what we are able to observe.”

Nearly 1,300 instances of Ivanti EPMM are still exposed to the internet, but it’s unknown how many of those are vulnerable or already compromised, according to Shadowserver.

Other researchers that have been tracking the vulnerabilities have also found evidence of heightened malicious activity targeting potential victims. 

During a 24-hour period, Rapid7’s Ivanti EPMM honeypot “recorded hundreds of inbound traffic connections from more than 130 unique IP addresses, with 58% directly attempting exploitation of the latest Ivanti EPMM vulnerabilities,” said Christiaan Beek, the company’s senior director of threat intelligence and analytics. 

Beek emphasized that the dominant payloads observed by Rapid7’s honeypot were not attributed to researchers, but rather built to gain rapid control via reverse shells, webshell deployment attempts and automated payload droppers. 

Ivanti has thus far declined to say when and how it first became aware of the vulnerabilities or when the first known date of exploitation occurred.

Attacks involving Ivanti defects are a recurring problem for the vendor’s customers and security practitioners at large.

The Cybersecurity and Infrastructure Security Agency has flagged 31 Ivanti defects on its known exploited vulnerabilities catalog since late 2021. At least 19 defects across Ivanti products have been exploited in the past two years.

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