In Captain America: The Winter Soldier™,
Arnim Zola's consciousness is revealed to be within a super-computer in a bunker
Wouldn't it be reasonable for him to have copied himself elsewhere? Wouldn't this have caused the same or similar issues as Ultron? In Avengers:Age of Ultron™,
Vision provides the power to force & lock Ultron out of the Internet
But wouldn't Zola have the same advantage of self-replication & infiltration, albeit with less potency perhaps? Do we have any indication that he wasn't destroyed along with that bunker, and isn't still nefariously scheming away on some AWS server somewhere?