Details Emerge on Global Bank Heists by Hackers

Just how securely are banks moving money around the world?

New details emerged on Friday about a pair of related attacks on banks that use the Swift message service, which allows financial firms and companies to transfer payments around the world.

Computer security researchers briefed on the investigation into one of the attacks, on the Bangladesh Bank, raised several theories about the crime, including the possibility that groups from Pakistan and North Korea may have been spying on the bank. Other analysts investigating the attacks said there were striking similarities between the “multiple bespoke tools” used by the hackers in both the banking cases and the attack on Sony Pictures in 2014.