A coordinated cyberattack targeting more than 30 community water utilities across Minnesota has prompted a statewide cybersecurity response. Key takeaways of the Minnesota water utility incidentMore than 30 Minnesota water utilities were targeted in a coordinated cyberattack that allegedly disrupted operational technology (OT) systems. Utilities maintained water service through manual operations and contingency plans, with no reported impacts to drinking water quality. What happened during the Minnesota water utility cyberattackThe coordinated attacks occurred on July 26 and 27 and targeted the operational technology (OT) systems used by more than 30 community water utilities across Minnesota. Establish a risk-based process for patching and hardening OT systems, including regular reviews of outdated software, firmware, and device configurations.