UPDATE: US official says JP Morgan plus four other banks hit by hackers

by The Daily Lede

A coordinated attack targeting customer data that could be used to drain accounts hit JP Morgan and four other financial institutions says one US official.

According to one source involved in the investigation, hackers targeted gigabytes of customer and employee information indicating the potential for significant financial fraud.

Hackers used a software flaw known as “zero-day” which allows the remote takeover of a computer. According to people familiar with the attacks, the ease at which these criminals navigated through the elaborate layers of security indicates a level of skill beyond any ordinary hacker.

It has not yet been determined whether this month’s data breach resulted in any financial losses for customers.  Those involved with the investigation did not specify whether the stolen information included account numbers, credit card numbers or passwords.