Iran-linked Cyberattack Shuts Down UK Power Plant for Four Days
ID: 26703030-8843-5ed9-ab69-54cd5eb97805
STIX ID: report--26703030-8843-5ed9-ab69-54cd5eb97805
Feed Name: ThreatCluster
Threat Score
A cyberattack attributed to Iranian hackers forced a small UK power plant offline for four days in July 2026; the affected facility was a small-scale generator so the wider UK power grid was not impacted. The incident — the first known successful cyberattack on British energy infrastructure — coincided with attacks on US water infrastructure, prompted NCSC notification and government briefings, and is assessed as part of increased Iranian cyber activity against Western targets.
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