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.
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Investigators cautioned that the assessment was preliminary. There were no indications that any water supply had been rendered unsafe to drink.
Malicious cyber activity affected technology at water systems in at least seven states this week, including Minnesota, leading authorities to dig into whether Iranian actors are behind the attack, CBS News has learned.
U.S. investigating if Iran was behind cyberattack on water systems in 7 states, including Minnesota https://www. cbsnews.com/news/us-investigat ing-iran-cyberattack-minnesota-water-systems/