After affected Facebook users log back in they will get a notification at the top of their News Feed explaining what happened.

Facebook security breach compromised the information of 50 million users

Facebook, the social media giant with over two billion monthly active users, reported on Friday (28/09/18) that their engineering team discovered an attack on their systems that compromised the highly sensitive personal data of 50 million Facebook users. As one of the leading data-collection agencies in the world, Facebook is nearly unrivalled in its depth and range of user data, and leverages...
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