SCADA
Posted By matt on August 26, 2009
Don’t connect control systems to the intertubes!!!
Since we make such systems at work, this was the subject of some lively discussion at work today, especially since we make a unit which connects home via a cellular modem.
This stuff can be really, really scary if not done carefully.
What is even more scary are old, insecure protocols, which were designed for isolated networks. Modbus, for example. Don’t put old bad stuff on teh intertubes!!!!
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yuppers! The farthest I would allow for remote control was, if the machine was online before the power failure and I've got a clean alarm state and the doors are closed, I would let 'em put the machine back online remotely.
Still blows my mind that someone asked for complete remote control… No concept that someone might be actually inside the thing when they remotely started it. (we were making hazardous gas containment systems, so potential poisoning)