FBI Investigates as Iranian-Attributed Cyberattacks on Water Systems Expand to Michigan With Nine Systems Hit

Michigan reported cyberattacks on nine of its water systems on Saturday, joining Minnesota, which earlier in the week reported incidents at more than 30 systems, and both states said no water quality or public health impacts resulted 12. Michigan's Department of Environment, Great Lakes, and Energy said the state received a federal cyber alert on Tuesday warning of tampering attempts against water-system operational technology, followed by reports from Michigan communities matching that activity 1. The FBI said it is investigating and has not publicly identified a culprit, and a bureau spokesperson declined to name a suspected responsible party 13. The reports follow a joint FBI-CISA advisory warning that Iranian hackers have been targeting water and wastewater operational controls; the advisory said at least seven states have reported incidents, though only Minnesota and Michigan have been publicly identified 3. President Trump said Friday he believed Minnesota's state government was responsible and stated he did not think an Iranian cyberattack occurred, a claim Minnesota Governor Tim Walz disputed, saying Trump "knows exactly who is responsible for this attack" 13.