When a Facebook user blocks someone, the blocked user will be not able to interact with him, this means that he will not see his posts, it will not able to start conversations on Messenger or add him as a friend. The blocked user may have also been able to contact the blocker via Messenger.
Facebook discovered a bug affecting its platform that allowed blocked users to interact with the accounts that decided to block them. As result, blocked users were able to see some of the content posted by individuals who had blocked them.
The issue was introduced on May 29, and the social network giant addressed it on June 5.
“Starting today we are notifying over 800,000 users about a bug in Facebook and Messenger that unblocked some people they had blocked. The bug was active between May 29 and June 5 — and while someone who was unblocked could not see content shared with friends, they could have seen things posted to a wider audience. For example pictures shared with friends of friends. ” wrote Facebook Chief Privacy Officer Erin Egan.
According to Egan, one a user has been blocked will not see content shared only with friends, but he may have been shown content shared with “friends of friends.
Egan clarified that blocking also automatically unfriends users if they were previously friends.
Below the details shared by Egan on this specific bug.
Facebook has fixed the bug and everyone has been blocked again, the company is sending a notification t the affected accounts encouraging them to check their blocked list.
(Security Affairs – Facebook, bug)
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