Nearly 50 Million Facebook Accounts Affected by Massive Security Breach

Full extent not yet known

Facebook said attackers tried to access users' personal information. Getty Images

A security breach at Facebook has affected nearly 50 million of the social media platform’s users, Facebook said Friday.

@kelseymsutton kelsey.sutton@adweek.com Kelsey Sutton is the streaming editor at Adweek, where she covers the business of streaming television.