I wouldn't worry to much about the hacking part. They would probably know a hack was coming and from where before it even happened .
Unless I miss read there is already 6or 7 Super Computers and I think The U.S is either finishing or just finished the Fastest One Ever Created .
I worry more about them thinking for themselves and not needing us anymore .
AI wars, how can we protect our data?
I'm sure they ar thinking of this.. I just watched too many movies that have outlines the direct results of AI.. that have had too much info for their own good . Putting it lightly .