JPMorgan Chase (NYSE: JPM) officials are bracing for a massive spear phishing campaign launched by cyber thieves who broke into the bank’s servers in the biggest cyber-attack on a U.S. bank to date. Cyber criminals thought to be emanating from Russia or former Soviet satellite states hacked into numerous JPMorgan computer servers and accessed contact information like names and email addresses for 76 million customers and seven million small businesses.
JPMorgan is saying no bank account information was compromised, but it now fears the hackers will come back for this information in another wave of attacks directly on bank customers.