How hackers attack municipal water systems – and why the utilities are so vulnerable

A cybersecurity researcher explains how hackers target small computers that control a water system’s tanks, pipes and valves.

By: William Akoto, American University School of International Service, The Conversation

Outlets: The Conversation

Published: August 4, 2026

Words: 1,118

Last Updated: 1 week, 6 days ago

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By William Akoto, American University School of International Service

Hackers tried to break into at least 30 municipal water systems in Minnesota on July 26-27, 2026. Since then, Michigan, New Jersey and several other states have reported similar cyberattacks.

The attackers did not try to infiltrate the computers that utility offices use. Instead, they tried to seize control of small computers in equipment like pumps and valves that deliver drinking water …

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