Problem
In 2001, a former contractor who still had access to the system, compromised the industrial control system (ICS). This compromised causes the sewage to flood the town and watershed.
This would become the first widely recognized attack on and industrial system.
“Marine life died, the creek water turned black and the stench was unbearable for residents,” said Janelle Bryant of the Australian Environmental Protection Agency in The Register“
Solution
- Focus on possible Insider Threats
- Offboarding procedures
- Emphasize separation of duties
- Airgap operational technology from information technology.