JPMorgan Chase Says More Than 76 Million Accounts Compromised in Cyberattack - NYTimes.com

Deep and disconcerting

"It is still not clear how hackers managed to gain deep access to the bank’s computer network. By the time the bank’s security team discovered the breach in late July, hackers had already gained the highest level of administrative privilege to more than 90 of the bank’s computer servers,  according to several people briefed on the results of the bank’s forensics investigation who were not allowed to discuss it publicly.

More disturbing still, these people say, hackers made off with a list of the applications and programs that run on every standard JPMorgan computer– a hacker’s road map of sorts — which hackers could cross check with known vulnerabilities in each program and web application, in search of an entry point back into the bank’s systems."

JPMorgan Chase Says More Than 76 Million Accounts Compromised in Cyberattack - NYTimes.com