[mabarker1]

before the internet and cell phones, the utility companies had to locate or send employees out to their facilities to manage and maintain them.

It's true, in the early years of being a Surface Water Treatment Plant Operator I was at one WTP and We had to decide what numbers We wanted/needed to have for our Log Sheets, so We would write it in and then 1of the Operators would get the right size circular rock, a hammer and chisel so the Numbers could be put in the Rock Gauge.

No security breaches at Our WTP.🤪

Seriously now it's fairly simple and relatively low cost to secure the SCADA System. First thing is NO Connection to the Internet wirelessly or wired -PERIOD !!! Second is to have all Remote Sights (storage tanks, pump stations, control valves, chemical storage, chemical control and feeding control equipment) via Radios ONLY and Radio at the SCADA System. I'll repeat ABSOLUTELY NOTHING CONNECTED TO THE INTERNET !!!

[Manuel OKelley]

radio connectivity is hard to secure and absolutely can be hacked with much less chance of detection or warning.

[Chode]

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