Billion Dollar

did anyone hear about the billion dollar hack in which hackers i think in russia and china stole like a billion dollars from banks across europe and i think maybe the united states? why is it that hackers who can steal this amount of money always seem to live outside first world countries like the u.s., canada, western europe, japan, australia, and new zealand? ive never come across or heard of a case in which hackers who live in any of these nations are able to steal this much money, why is that? would someone care to explain this to me. thank you.