Facebook Says Bug Unblocked Connections for Over 800,000 Users

Yolanda Curtis
July 3, 2018

Claiming that the bug had been fixed, the Facebook post also suggested that users check their block list, to see if they were affected in any way.

The company said Monday that the bug was active between May 29 and June 5. In a blog post, chief privacy officer Erin Egan noted that the unblocking did not surface information shared with friends, but did show things posted to wider audiences, for example, images users shared with friends of friends.

Facebook has apologised for its second high-profile bug in as many months.


The vast majority of the more than 800,000 people affected by the bug had only one person they had blocked be temporarily unblocked, according to Facebook.

That ex you blocked on Facebook may have had access to your posts after all.

The company states that of the accounts affected by the bug, 83 per cent only allowed one blocked contact to gain Messenger and public post privileges.


"We know that the ability to block someone is important - and we'd like to apologise and explain what happened".

The unblocked users were not able to see content shared with the friends of those they'd been blocked by, and the bug "did not reinstate any friend connections that had been severed". It suggests that users check their blocked lists, and reassures them that the issue has now been resolved. "Other reasons are more serious like harassment or bullying", she said.

Starting today we are notifying over 800,000 users about a bug in Facebook and Messenger that unblocked some people they had blocked. However, because of the bug, someone who was unblocked could have been able to message a user who had blocked them in the past.


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