Michigan joined Minnesota in reporting cyberattacks targeting water systems, and the FBI has opened an investigation after federal alerts warned of Iranian interest in disrupting US water and wastewater operations. Michigan said nine water systems were impacted but asserted all systems were operating “safely,” with issues addressed by local operators and no known public health concerns. The report follows Minnesota’s earlier disclosure that hackers targeted more than 30 water systems. Michigan’s communications director said the state received a federal cyber alert describing attempts to tamper with operational technology at water facilities, and subsequently received reports consistent with those warnings. The FBI said it is aware of the reporting and remains engaged with interagency partners, while the broader advisory context underscores that many local water plants often lack resources and expertise to deploy the latest security patches and protections for operational technology.