CISA confirms hackers targeted over 100 US water systems during July

CISA has observed cyberattacks targeting more than 100 internet-exposed water and wastewater systems across multiple U.S. states, focusing on PLCs from vendors including Rockwell, Schneider Electric, and Siemens. Intrusions—reportedly leveraging AI-derived scripts—have allowed attackers to modify controllers to disable shutdown processes and alarms, causing outages and operational disruption; U.S. officials suspect Iranian involvement but attribution remains unconfirmed.