President Trump claimed without evidence on July 31, 2026, that Minnesota's Democratic government was responsible for cyberattacks on the state's water systems. Investigators believe Iran is likely responsible, contradicting the president's assertion.
US investigators assessed that Iran was likely responsible for cyberattacks on water and wastewater system technology in at least seven states by July 30–31, 2026, including Minnesota and Michigan. Although the assessment was preliminary, officials confirmed no water supplies had been rendered unsafe to drink.
Security researchers suspect Iran-linked group CyberAv3ngers attacked over 30 water facilities in Minnesota in a coordinated cyberattack. Authorities have not yet officially confirmed the attribution.
A coordinated cyberattack has disrupted water utilities serving more than 30 communities across Minnesota, targeting critical infrastructure systems. The attack exposes vulnerabilities in operational technology infrastructure nationwide.