The 10 Biggest Data Breaches Of 2013 (So Far)

Facebook Breach

A security vulnerability exposed the email addresses and telephone numbers of an estimated 6 million Facebook users in June. The bug, uncovered through the company's white hat hacker "Responsible Disclosure" program, was found in a component of a user's contact list and address book on the social network. In its announcement of the problem, Facebook said the issue stemmed from the way it generated friend recommendations based on contact information uploaded to the social network. The company said no other information was exposed on users.

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