Facebook says security breach affected 50 million accounts

Facebook just announced a major security issue affecting 50 million users

Facebook just announced a major security issue affecting 50 million users

Facebook (FB) today announced that some 50 million user accounts were impacted by a security breach that allowed the attackers to potentially take over users' profiles.

In response to discovering the attack, Facebook reset the access tokens of the 50 million accounts it found to be compromised, which will require those users to enter their password to log back in. It has also reset the access tokens, which meant about 90 million people had to log back onto Facebook or its other apps that use the Facebook login.

CEO Mark Zuckerberg posted a statement indicating the company had patched the vulnerabilities exploited by the attacker (s) and was investigating the incident further. Law enforcement agencies have been informed of the breach, and the vulnerability is now fixed. As Michael Roston, a science editor for the New York Times noted on Twitter, it reveals that a large proportion of Facebook users aren't protecting themselves from hacks like this as best they could.

"This attack exploited the complex interaction of multiple issues in our code", Guy Rosen, VP of Product Management, wrote.

"It stemmed from a change we made to our video uploading feature in July 2017, which impacted "view as". On a call with reporters Friday, Facebook executives said no actual passwords were taken, so a password reset is not necessary. Now it seems the logging out was part of action taken by Facebook to plug a security flaw that had affected at least 50 million users.

Facebook is yet to determine if information was stolen from these accounts, as they also do not know who is responsible for this attack.

The announcement is the latest issue for the company, which has struggled with security breaches, privacy issues and misinformation in recent years. We'll update this post as more information becomes available.

Nearly 50 million Facebook users have been left exposed by a security flaw. Additionally, as a precaution, it's resetting tokens for another 40 million accounts that have been subject to "View As".

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