Sasser Worm Causes Loss of View in Chemicals Plant

Event Year: 2004 Reliability: Confirmed
Country: United States
Industry Type: Chemical

The Sasser worm infected the DCS of a major chemicals plant. The worm infection came through the firewall on port 445 which was needed for the PHD authentication connection. The worm caused loss of view and loss of control for the whole of the DCS control system for the entire plant for over 5 hours.


Raised awareness significantly.

Action Description: Raised profile of security programme and improved architecture.