After Breach, JPMorgan Still Seeks to Determine Extent of Attack

By Nicole Perlroth and Matthew Goldstein

The headache caused by the attack on JPMorgan Chase’s computer network this summer may not go away anytime soon.

Over two months, hackers gained entry to dozens of the bank’s servers, said three people with knowledge of the bank’s investigation into the episode who spoke on the condition of anonymity. This, they said, potentially gave the hackers a window into how the bank’s individual computers work.

They said it might be difficult for the bank to find every last vulnerability and be sure that its systems were thoroughly secured against future attack.

The hackers were able to review information about a million customer accounts and gain access to a list of the software applications installed on the bank’s computers.

Copyright: New York Times, 2014.

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