Facebook disclosed a bug this morning that affected about 800,000 users by unblocking at least one person on that user’s block list for around one week. Writing in a blog post, Erin Egan, the company’s chief privacy officer, said the bug was active between May 29th and June 5th. It did not re-establish friend connections between any of the affected users and the blocked individuals, Egan says, but it did allow those previously blocked users to see posts shared to a wider audience, like photos shared with friends of friends. Content shared with the friends-only preference would not have been accessible to the unblocked person.
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