Hopefully, the Nork’s nuclear reactors are not controlled via the internet and neither is their doomsday nuclear response system, if they have one.
You bring up an interesting point. The NORKs have a satellite (I seem to recall three, but without doubt one) floating around in orbit and no one really knows what its actually doing up there. Some have said it is tumbling in orbit and “dead”, others have said it could be a secret emp (fringe, I know).
I think the actuating mechanism on the 4.3kt nuke launching trebuchet is analog...