Facebook Attackers Gained Contact Information for 15 Million Users

An online attack that forced Facebook to log out 90 million users last month directly affected 29 million people on the social network, the company said as it released new details about the scope of an incident that has regulators and law enforcement on high alert. Through a series of interrelated bugs in Facebook’s programming, unnamed attackers stole the names and contact information of 15 million users, Facebook said.