Facebook respond to facing £500k fine over Cambridge Analytica scandal

The Information Commissioner has slapped a half million pound fine on Facebook for failing to safeguard its users' data. The maximum fine was issued after this programme and the Guardian newspaper revealed how political strategy firm Cambridge Analytica harvested data from millions of users of the social media site. The commissioner's office also said it could now bring criminal charges against the parent company of Cambridge Analytica. Facebook and whistleblower Chris Wylie give their responses. (Click to subscribe for more Channel 4 News videos. https://www.youtube.com/channel4news?...)