A joint international law enforcement and industry operation against scammers netted 28 arrests, rescued 117 trafficking victims and led to the takedown of more than 3.7 million accounts, the Justice Department announced Tuesday.

The crackdown, billed as “Joint Disruption Week,” focused on West Africa and also identified more than $11 million in freezable funds and led to the seizure of hundreds of electronic devices. The range of scams involved included law enforcement impersonation scams, digital arrest extortion schemes, pig butchering and other online fraud operations targeting victims around the world.

Participants heralded it as the largest joint scam operation to date, and the first focused on West Africa.

“For so long, the problem of international scams seemed impossible to tackle,” Kelly Milliron, acting chief of staff and counselor to the Assistant Attorney General leading the Criminal Division, told reporters. “But now, because of collaborations like Joint Disruption Week, we have a plan, a consolidated approach, bringing together people that can bring solutions and, most of all, safety for our citizens.”

It’s the latest effort in the Trump administration’s ongoing bid to make countering scam operations a theme of his term, and to make disrupting cyber adversaries and criminals a central focus of its cyber strategy. 

Participating agencies in the London-hosted operation beyond the Justice Department were the Scam Center Strike Force under the U.S. Attorney’s Office for the District of Columbia, the FBI, the Secret Service, the Treasury Department, Homeland Security Investigations, the Homeland Security Task Force, the United Kingdom’s National Crime Agency, the Nigerian Joint Case Team on Cybercrimes, the Nigeria Police Force’s National Cybercrime Center and the Ghanaian Cyber Security Authority, INTERPOL and agencies from Australia, Canada, India and New Zealand also were involved. 

Adobe, Binance, Coinbase, Cyjax, Elliptic, Chainalysis, Flashpoint, Google, Meta, Microsoft, OpenAI, Silent Push, Starlink and TRM Labs were companies that participated in the operation. Meta said it removed more than 3.7 million accounts, groups and pages from Facebook and Instagram based in West Africa, a majority of which targeted people in the United States and United Kingdom.

Some on Capitol Hill have raised concerns about whether U.S. operations to counter scams are coordinated enough.

The operation actually began in September, with a series of raids in Ghana before last week’s designated action. Jeanine Pirro, U.S. Attorney for the District of Columbia, said Disruption Week occurred not long after a new partnership with the United Kingdom.

“The aim is to bring cases in parallel and also to combat fraud together through joint targeting,” she said. “This was the perfect time to continue that partnership.”

It’s not clear how many of the potentially freezable funds will actually be frozen as a result of the operation.

“Identifying the assets is the easy part, and tracing them, going after and developing probable cause within our investigations so that we can legally seize them does require a little bit of work,” said Matthew Floyd, deputy assistant director of the FBI’s Criminal Investigative Division. “So at this point, that’s why it’s much easier in these efforts to identify assets initially, and then they’ll fold into our investigations as we move forward.”

Disruption Week was the culmination of agencies meeting to combine forces, something that will happen on a regular basis, Floyd said, but at an interval to be determined going forward. The operation led to the sharing of more than 30 leads on scam centers, participants said.

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U.S. and South Korean cyber agencies warned Monday about a ransomware-as-a-service outfit, Gunra, that reportedly recruits ethical hackers and penetration testers and benefits from North Korean government-linked hackers’ tools to target government and critical infrastructure organizations.

Gunra has gone after sectors such as academia, financial services and insurance, government services and facilities, healthcare, manufacturing and construction, media, retail, transportation and utilities. Its global scope is far-ranging, according to Monday’s alert: Africa, the Americas, the Asia-Pacific, Europe and the Middle East.

“Gunra is another variant in the ongoing trend of ransomware attacks causing disruption and harm to U.S. and international organizations,” said Chris Butera, acting assistant director for cybersecurity at the Cybersecurity and Infrastructure Security Agency, which produced the advisory with the Department of Defense’s Cyber Crime Center, FBI, National Security Agency, Secret Service and Republic of Korea’s National Police Agency.

The alert is part of the #StopRansomware series, a joint FBI-CISA project aimed at network defenders.

The FBI first took notice of Gunra in April of last year. The double-extortion group established a data leak site on Tor to list victims and publish purloined data. By January of this year, Gunra had launched a formal ransomware-as-a-service affiliate and was growing in its ambition, Monday’s alert states.

“The FBI observed the group adopting new branding aliases (notably operating under the name Golden Community) to support this expansion,” it reads. “Gunra has further commercialized its platform by actively recruiting penetration testers and ethical hackers to serve as initial access brokers, offering a share of the ransom profits in exchange for enterprise network access.”

Gunra seeks initial access with known vulnerabilities in internet-facing devices like firewalls or virtual private networks, and is based on or influenced by the Conti ransomware code leaked in 2022, according to the agencies.

Research published in July by a South Korean cybersecurity firm took note of Gunra overlap with Lazarus Group, although it doesn’t explicitly mention the latter group’s name.

“These commonalities suggest that although the state-sponsored threat group and the Gunra ransomware group appear to be separate threat actors with different ultimate objectives, they may have shared certain techniques, tools, and infrastructure or collaborated to a limited extent during the attacks,” AhnLab wrote in its report.

That kind of North Korean government-ransomware gang collaboration dates back to at least 2024. Nor is Gunra alone among ransomware-as-a-service outfits recruiting penetration testers.

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