Facebook has announced that a previously unreported attack on its network exposed the personal data of nearly 50 million users. The company said that it discovered the breach earlier this week. Attackers used a flaw in Facebook’s code to take over user attacks, the company said.

The social network says that the vulnerability has been fixed and law enforcement has been notified. Some 90 million users have been forced to log out of their accounts as of Friday morning, and when they log back in, Facebook will notify them about the breach. That move was a precautionary measure, the company said. READ MORE…