A Facebook Bug Might Have Unblocked Users on Your Blocked List

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Users affected by the bug should expect to see a notification asking them to go over go over their blocked list.

When asked by a journalist, Facebook on Twitter provided context of what caused the bug and how it worked.

Rather than wait for some enterprising third-party security researcher to unearth the bug, Facebook's chief privacy officer, Erin Egan, took a swig from the mea culpa chalice.

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The bug doesn't appear to have been active for long in the grand scheme of things, but it's yet another example a breach of trust between Facebook and its users. The social networking giant that doesn't consider itself a monopoly has said that a software "bug" unblocked some people who had been blocked by another user. 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 other 17 percent of users had more than one person unblocked, thanks to the bug.

"We know that the ability to block someone is important", Egan wrote, "and we'd like to apologize and explain what happened".

While it was active between May 29 and June 5, the bug allowed unblocked users to contact the people who blocked them through Messenger. Likewise, a previously blocked contact might have been able to contact someone who had blocked them on Messenger. It suggests that users check their blocked lists, and reassures them that the issue has now been resolved. To be sure, the company's transparency and clear communication on this latest one is admirable, but you can see how it adds up to death by a thousand cuts if Facebook can't somehow turn things around when it comes to public perception.

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