The point is, when you're dealing with people of this level of supposed skill, they can just walk into pretty much any network. They're all vulnerable on some level if you're capable of actually breaking them yourself in novel ways.
The only real solution is either to not depend on any single network, or to make it clear that you will simply kill anyone who troubles you. Or just remain innocuous enough that nobody will care to.
They had skilz, no doubt, but it does not appear the CF hack was the zen apex of hacking. It was a well known exploit you could drive a truck through. Writing Stuxnet, now that was mad skilz.
The only real solution is either to not depend on any single network, or to make it clear that you will simply kill anyone who troubles you. Or just remain innocuous enough that nobody will care to.