Iran regional confrontation

Iran-linked hackers shut down small UK power plant for four days in unprecedented cyberattack

ATTACK
Location
United Kingdom
Actors
Iran
Importance
Major

Hackers linked to Iran took a small British power plant offline for four days last month by breaching its safety systems, The Telegraph disclosed on 22 August 2026 - described as the first known cyberattack of this kind and sophistication against UK infrastructure. The wider grid was not affected, according to the report.

Verification: Probable

Evidence: Iranian hackers shut down UK power plant, Iranian hackers carry out unprecedented attack on UK power generator

Telegraph exclusive relayed by The Independent; attribution to Iran-linked hackers per reporting, no independent technical attribution published at retrieval. Exact July dates not stated. PENDING-CHECK: confirm country ref GBR resolves in /catalog/countries before prepare.