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JPMorgan says data breach hit an unexpected 76 million households (+video)

JPMorgan Chase, the nation's biggest bank by assets, said there's no evidence that the data breach included JPMorgan Chase customers' account numbers, passwords, Social Security numbers or dates of birth. It also said it has not seen any unusual customer fraud stemming from the cyberattack.

A huge cyberattack against JPMorgan Chase & Co. this summer has compromised customer information for about 76 million households and 7 million small businesses, the bank said Thursday.

JPMorgan Chase said that names, addresses, phone numbers and email addresses were stolen from the company's servers, but only customers who use the websites Chase.com and JPMorganOnline and the apps ChaseMobile and JPMorgan Mobile were affected.

The New York-based bank said there's no evidence that the data breach included account numbers, passwords, Social Security numbers or dates of birth. It also said it has not seen any unusual customer fraud stemming from the data breach.

JPMorgan Chase, the nation's biggest bank by assets, has been working with law enforcement officials to investigate the cyberattack.

The bank discovered the intrusion on its servers in mid-August and has since determined that the breach began as early as June, said spokeswoman Patricia Wexler.

"We have identified and closed the known access paths," she said, declining to elaborate.

The company also disabled compromised accounts and reset passwords of all its technology employees, Wexler said.

In a post on its Chase.com website, the bank told customers that it doesn't believe they need to change their password or account information.

The breach is yet another in a series of data thefts that have hit financial firms and major retailers.

Last month, Home Depot said that malicious software lurking in its check-out terminals between April and September affected 56 million debit and credit cards. Michaels and Neiman Marcus also have been attacked by hackers in the past year.

A data breach at Target in December compromised 40 million credit and debit cards. TJX Cos.'s theft of 90 million records, disclosed in 2007, remains the largest data breach at a retailer.

Last year, four Russian nationals and a Ukrainian were charged in what has been called the largest hacking and data breach scheme ever prosecuted in the United States. They were accused of running a hacking organization that penetrated computer networks of more than a dozen major U.S. and international corporations over seven years, stealing and selling at least 160 million credit and debit card numbers, resulting in losses of hundreds of millions of dollars.

Heartland Payment Systems Inc., which processes credit and debit cards for businesses, was identified as taking the biggest hit in a scheme starting in 2007 — the theft of more than 130 million card numbers at a loss of about $200 million. Global Payment Systems, another major payment processing company, had nearly 1 million card numbers stolen, with losses of nearly $93 million, according to prosecutors.

The Chase heist is even more disturbing than the recent retail breaches because banks are supposed to have fortress-like protection against intruders, said Gartner security analyst Avivah Litan.

"This is really a slap in the face of the American financial services system," Litan said. "Honestly, this is a crisis point."

Chase's assurances that they haven't found any evidence of the personal data being misused shouldn't be misinterpreted as a reason to rest easy. The information still could be used in a variety of ways to rip off people in the months and years ahead.

That means consumers and business owners need to be more vigilant than ever, making sure to pore over their financial statements each month for any sign of suspicious activity. People also should be more leery than ever of unsolicited phone calls from purported bank representatives, emails fishing for their financial information and even uninvited guests knocking at their doors.

"You have to be paranoid now. You can't slack off," Litan said. There is no such thing as data confidentiality anymore. Everything is out there."

Jamie Dimon, the bank's CEO, said in this year's annual report that despite spending millions on cybersecurity, JPMorgan remained worried about the threat of attacks. By the end of this year, the bank estimates that it will be spending about $250 million annually on cybersecurity and employing 1,000 people in the area.

In August, the FBI said that it was working with the Secret Service to determine the scope of recent cyberattacks against several American financial institutions.

Last month, JPMorgan began notifying customers that it would reissue credit or debit cards in the wake of the data breach at Home Depot. Wexler said the bank doesn't plan to reissue cards as a result of the breach of its servers, noting that customer account information was not stolen.

Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

 
 
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