Colorado Water Utilities Hit by Cyberattacks Targeting OT Systems

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Two small water utilities in Colorado were targeted by cyberattacks against their operational technology systems in late August 2026. Hackers reportedly changed equipment settings, disabled remote access and alarms, and altered pumping cycles. The disruptions were brief and did not affect water services or public safety, but the incidents highlight growing cybersecurity risks facing water and wastewater infrastructure. In this episode, we examine what happened, why OT and industrial control systems are attractive targets, the wider wave of attacks against US water utilities, and the security measures recommended by CISA.