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Australian police arrest two men accused of widespread open-source software hacking

By Thomson Reuters Aug 27, 2026 | 3:54 PM

By AJ Vicens

Aug 27 (Reuters) – Australian police announced charges on Thursday against two men accused of participating in a cybercrime syndicate that targeted widely used open-source ​software to compromise thousands of global businesses.

The Australian men ‌face a combined 14 charges for their alleged roles in TeamPCP, a hacking collective that inserted malicious code into popular tools to compromise businesses, according to a statement from the Australian Federal Police. Some of ‌the ​businesses were later extorted, according to ⁠a July FBI advisory.

The ⁠police did not name the men, but the Australian Broadcasting Corporation identified them as Ruben Ian Thomson, 21, and Louis Michael Gaebler, 23.

Nick Scerri, a lawyer for Thomson, did ​not immediately respond to a request for comment outside of normal business hours. Reuters could not immediately find an ⁠attorney for Gaebler.

The malicious code potentially ⁠compromised more than 1,000 organizations globally, enabling the ​theft of more than 500,000 credentials and more than 300 ​gigabytes of data, according to police.

The police said they ‌conducted a parallel investigation into the men with the FBI starting in April after receiving information from multiple unnamed cybersecurity threat assessment companies.

“We are proud to work with the Australian ⁠Federal Police and the Western Australia Police Force to impose cost on criminal actors and combat the growing threat of software supply-chain ⁠attacks,” FBI Cyber ‌Division Assistant Director Brett Leatherman said in ⁠the police statement.

The FBI declined further comment.

Austin Larsen, ​a ‌principal threat analyst with Google Threat Intelligence ​Group, called TeamPCP “one ⁠of the most impactful threat actors of 2026” in a message posted to LinkedIn. Larsen described TeamPCP as a “peer community of individually skilled actors with one clear center of gravity,” rather than a single, unified group.

(Reporting by AJ Vicens in DetroitEditing ​by Rod Nickel)