An outside developer violated the social network's policies and shared the data of tens of millions of users with people he shouldn't have. (wsj.com)
The company is facing unprecedented scrutiny following reports that a data mining firm used ill - gotten data from tens of millions of its users to try to influence elections. (fox8live.com)
The application suite reaches tens of millions of users and supports over a million live conversations a month. (idate2004.com)