The PLC cyberattacks targeting the Water and Wastewater Sector have prompted a joint warning from the Federal Bureau of Investigation (FBI) and the Environmental Protection Agency (EPA), after multiple cyber incidents disrupted water operations across the United States. Since July 27, 2026, utility companies in at least seven states have reported attacks involving internet-facing PLCs, with some incidents resulting in degraded operations after threat actors altered device configurations.

According to the Public Service Announcement (PSA), malicious cyber actors targeted Programmable Logic Controllers manufactured by Rockwell Automation, specifically the Allen-Bradley MicroLogix 1100 and 14...