Coordinated Cyberattack on Minnesota Water Utilities: What You Need to Know
Tenable, Wednesday, July 29th, 2026
Tenable covers a coordinated attack that disrupted water systems across more than 30 Minnesota communities.
A coordinated cyberattack disrupted water systems across more than 30 Minnesota communities. Tenable published a FAQ covering what defenders need to know about the attack so far, including what is known about the access method and the scope of disruption.
The post also details recent cyber activity targeting internet-exposed programmable logic controllers more broadly, which is the pattern this incident fits.
Tenable sets out how operators can identify and protect exposed infrastructure. Water utilities are a recurring target because many operate exposed control systems with limited security staffing.