The headquarters of JP Morgan Chase on Park Avenue December 12, 2013 in New York. JP Morgan Chase and federal authorities are close to a USD $2 billion settlement over the bank's ties to financier Bernard L. Madooff that involve penalties and deffered criminal prosecution. AFP PHOTO/Stan HONDA (Photo credit should read STAN HONDA/AFP/Getty Images)
Photograph by Stan Honday — AFP/Getty Images
By Benjamin Snyder
October 3, 2014

Let’s face it, it’s been a scary year in data security for companies and their customers alike. Hackers have been slipping through corporate computer defenses like they’re Swiss cheese.

On Thursday, J.P. Morgan Chase (JPM) said that a cyber attack over the summer may have compromised information about 76 million households. That included customer names, addresses, phone numbers and email contact information. In addition, the breach affected about seven million of J.P. Morgan’s small businesses customers. Overall, it may have been the biggest cyber attack in corporate history.

Here’s a look at some of the biggest breaches at some top companies.

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