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Facebook says bug temporarily unblocked users

The Facebook logo on a sign
Facebook has been grappling with privacy controversies very publicly since the Cambridge Analytica data scandal broke. Photo: Alexander Koerner/Getty Images

Facebook experienced a bug that temporarily unblocked some users from interacting with users who had previously blocked them.

Why it matters: Once again, the company is apologizing for a user privacy violation, this time in a feature that is key to address harassment and abuse. "We know that the ability to block someone is important — and we’d like to apologize and explain what happened," said Erin Egan, the company's chief privacy officer, in a Monday blog post.