U.S. prosecutors on Tuesday unveiled criminal charges accusing three men of helping run a sprawling series of hacking and fraud schemes, including a huge 2014 attack against JPMorgan Chase & Co (JPM.N), that generated hundreds of millions of dollars of illegal profit. Gery Shalon, Joshua Samuel Aaron and Ziv Orenstein were charged in a 23-count indictment with alleged crimes against at least nine financial services companies and media outlets, and which involved online casinos, payment processing for criminals, and an illegal bitcoin exchange.