Blaster Worm Infects Chemical Plant

Event Year: 2003 Reliability: Confirmed
Country: United Kingdom
Industry Type: Chemical

A couple of HMIs became infected by the nachi worm. The worm entered the control system through a poorly configured firewall. The worm infection was discovered by the AV software. No production was lost. The worm was removed and the firewall rules were tightened.



Action Description: Tightened firewall rules.