You have likely never worried about the possibility of someone doing some programming that affects your home water quality. Well, I just learnt that some municipal networks have no security between the network their schools use and the one that runs their water/wastewater facility.
This was the situation in [redacted]. The Department of Water Resources upgraded their SCADA network to industrial Ethernet. There was little protection or separation of the SCADA network from the city’s IT network. While this provided many benefits it also made the controls network susceptible to malware attacks, accidental network incidents and traffic storms.
I’ll finish the story tomorrow. Bye