National Cybersecurity Center
Informational Alert

Nearly 4,000 US Industrial Devices Exposed to Iranian Cyberattacks

Thousands of internet-connected industrial control devices in the U.S. may be exposed to attacks linked to Iranian hackers. If left open to the internet, these systems could be used to disrupt operations at important facilities.


Who Is at Risk

Organizations that operate industrial equipment, especially factories, utilities, and other critical infrastructure sites with devices connected to the internet.

What to Watch For

Watch for industrial equipment or control panels that are reachable from the internet or that show unusual changes, outages, or settings you did not make.

What to Do

Check whether any industrial devices are exposed online and remove public access or place them behind strong protection immediately.

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