NEW YORK- Facebook briefly blocked people from posting articles by The Associated Press and The Guardian about its security breach, announced Friday, which affected 50 million accounts. When users tried to post the articles, a notice popped up saying the article had triggered a filter for likely spam.

“Our security systems have detected that a lot of people are posting the same content, which could mean that it’s spam,” the notice said. “Please try a different post.”

Similar articles by The New York Times and other outlets were not blocked.

Facebook did not respond to a request for comment.

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