Iran-Linked Hackers Hit 36 Minnesota Water Systems – Manual Overrides Saved the Day

Iran-linked hackers targeted 36 Minnesota water systems in July 2026, knocking out automated controls. U.S. investigators and the security firm Tenable analyzed the cyberattacks, which occurred between Sunday and Monday. This escalation in retaliatory moves stems from the war. Despite the disruption to water management infrastructure, manual overrides successfully kept the drinking water safe. Preliminary findings conclude that Iranian actors were likely responsible for the coordinated strikes against these municipal water systems across the state.