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FBI and CISA Warn Water Utilities to Protect Internet-Facing PLCs After Attacks

Post-incident guidance that leads with the exposed device rather than the adversary. For a utility with one engineer, that is the usable document.

UnattributedGuidancePublic sectorMethod

Sev 329 July 2026TargetWater sector operatorsActorUnattributedUSA

26-0727

File

Attacks on Water Controllers Disrupt Operations Across 30 Minnesota Communities

More than 30 Minnesota communities disrupted through internet-facing controllers. Manual operation was the fallback, and it is a capability most utilities are losing.

Iran-affiliated (reported)Internet-facing PLCPublic sectorWater

Sev 527 July 2026TargetMinnesota water utilitiesActorIran-affiliated (reported)USA

ForensicPost

Independent reporting on digital forensics and incident response.

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