UK, US and Netherlands issue advisory on Iran-linked spyware

LONDON, Sept 15 (Reuters) - Britain, the ‌United States and the ​Netherlands ​on Tuesday issued a joint cybersecurity advisory detailing spyware they say is used by Iranian state-linked actors to target dissidents, activists and journalists.

Britain's National Cyber Security ‌Centre said Iranian state-linked cyber actors had used a spyware family known as "CHOSEN ⁠BRICK" to steal emails, messages and other sensitive information through "spear-phishing" campaigns on messaging platforms including WhatsApp and Telegram.

"The ‌details of this cyber campaign reveal  how ‌Iran ruthlessly uses digital surveillance in pursuit of  its  aim  to  repress critics of the regime, stealing emails and messages and accessing devices," Paul Chichester, NCSC director of operations, said ​in a statement.

Iran's embassy in London did not immediately respond to a request for comment.

The malware, according to the advisory, can collect information from contact lists, emails and social ⁠media accounts, capture screen content and access a device's microphone. The NCSC said some victims' personal details had later appeared on ​pro-Iranian leak sites. The FBI, in its own advisory, said Iran's Ministry of Intelligence and Security (MOIS) was using the malware to "collect intelligence, conduct data ​leaks, and inflict reputational harm against their intended targets."

The ‌FBI declined to share additional details on how many people have been targeted with the malware, or where they're located.

The NCSC said the attackers often ⁠posed as trusted contacts on messaging apps and tailored their approach to individual targets. In some cases, it said, they used fake documents, including fabricated MRI test results, to persuade victims to download the malware.

The ⁠NCSC, alongside the FBI and the Netherlands' AIVD intelligence service, said Iran "almost certainly" uses cyber operations to help ​suppress people it sees as threats.

The FBI's advisory said it was an update to a March 2026 warning describing alleged MOIS efforts to use the malware to collect data on targets, which was then posted ‌online by a hacking persona known as "Handala Hack."

Handala has targeted multiple U.S. companies and people since the start of the Iran war, including ‌a destructive cyberattack against Michigan-based medical supplies and services supplier Stryker in March, and the leak of ⁠FBI Director Kash Patel's personal emails later ‌that month.

Handala did not respond ​to an emailed request for comment on Tuesday.

(Reporting by Sam Tabahriti in London and AJ Vicens in Detroit. Editing by William James, Alexandra Hudson and ‌Mark Potter)

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