J.P. Morgan Chase said contact information for about 76 million households and about 7 million small businesses was compromised in a cybersecurity attack detected this summer.
According to the bank, information hacked did not include account numbers or social security numbers.
But the banks said contact information of the customers' -- names, email addresses, phone numbers and addresses—were captured by hackers, who remain unknown and under investigation by the bank and law enforcement.
According to WSJ, the attack at J.P. Morgan went unnoticed for about two months this summer, according to people familiar with the matter. Between mid-June and mid-August, hackers breached J.P. Morgan's servers for short intervals, around an hour at a time, these people said. J.P. Morgan learned of the attack in mid-August and stopped it, identifying and closing all access paths, these people said.
(ht Zach Tatum)
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