I'm not a pipeline expert, but I've been doing computers sense the early 90s. You have a pipe. It has pumps and valves. You have a computer that controls it all. The computer gets hacked. UNPLUG THE DAM COMPUTER... and plug in another one. Then restart the pumps. If they are too incompetent to figure out a workaround then get the hell out of the way and let someone else try.
If there is one thing I've learned with computers its that the guy at the console is god. There is no such thing as taking over from a remote location. Anyone that tells you differently has been watching too many movies. Send real actual human beings out the the pumps, unplug the dam computer and just turn the pump on manually. Yeah, a person might have to watch the pressure and flow rates etc rather than the computer. So the hell what. Get the dam gas flowing again morons.
Everyone needs to start gathering info on this. I'm seem stations in the south east running out of fuel because people are panic buying not because the station can't get fuel. There's a lot more to this than meets the eye. Don't believe the hype. Just like Lumber sitting in massive yards in the north east this seems to be contrived. Plenty of gas in the US and plenty of lumber but both are controlled by very few.
^^^ THIS ^^^