Cyber Agency Issues First Iran Threat Amid Government Shutdown

April 7, 2026, 9:03 PM UTC

The Cybersecurity and Infrastructure Security Agency issued its first public advisory to critical infrastructure since the start of the conflict between US, Israel, and Iran as a prolonged Department of Homeland Security shutdown persists.

Iran-affiliated cyber actors disrupted the operations of some US critical infrastructure facilities, according to an advisory released Tuesday from CISA in partnership with the FBI, National Security Agency, and other government entities, which urged organizations across sectors to watch for any suspicious activity on their network.

A group of threat actors is actively targeting and exploiting operational technology devices connected to the internet, including equipment manufactured ...

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