Iran-linked hackers disrupt operations at US critical infrastructure sites

Ars Technica
April 8, 2026
1 min read

Quick Insights

The Bottom Line

Iranian government-linked hackers are disrupting US critical infrastructure sites, causing operational and financial losses.

How This Affects You

Hackers targeting critical infrastructure like waste water systems and energy could disrupt essential services in your community.

AI Summary

Hackers working on behalf of the Iranian government are disrupting operations at multiple US critical infrastructure sites. Six government agencies, including the FBI and CISA, issued an "urgent" advisory on Tuesday, warning that an Iranian-affiliated APT group is targeting programmable logic controllers (PLCs). These PLCs are found in critical sectors like Government Services and Facilities, Waste Water Systems, and Energy, controlling physical machinery. Since at least March 2026, the group has disrupted PLC functions, causing operational disruption and financial loss for some victims. The advisory was issued in response to the country's ongoing war with the US.

What's Being Done

Six US government agencies, including the FBI and CISA, issued an urgent advisory warning about the Iranian-affiliated APT group.

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