A Facebook sex livestream scandal drew DDC attention, a cyber police probe, and warnings over sharing explicit clips online.

Mark Zuckerberg, the chief executive of Facebook, speaks at a conference in San Jose, Calif., April 18, 2017. Zuckerberg's upcoming testimony before Congress represents one of the biggest tests of his ...

March 18: That was the day the Guardian and the New York Times reported that 50 million Facebook (FB) profiles were harvested by data firm Cambridge Analytica for "psychographic profiles" in what was ...