Facebook Confirms Almost 50 Mln People Affected by Security Breach

Facebook shares dropped 2.8 percent after the company announced the discovery of the security flaw.

According to the social media giant, the breach, caused by a change made to the ‘view as’ video uploading feature in 2017, theoretically allowed hackers to steal access tokens and use them to take over accounts. The vulnerability was picked up on by Facebook’s engineers on September 25.

As a precaution, the company said it has reset the access tokens for the 50 million affected accounts, plus 40 million more accounts which had been subject to a ‘view as’ look-up over the past year, bringing the total number of people who will have to log back into their accounts to 90 million. The ‘view as’ feature has been temporarily turned off, and will remain disabled until a security review is complete.

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