https://www.cnbc.com/2018/03/27/palantir-worked-with-cambridge-analytica-on-the-facebook-data-whistleblower.html >Palantir, a secretive company co-founded by billionaire Peter Thiel, allegedly worked with Cambridge Analytica, the firm at the center of a controversy involving data harvested from Facebook users, according to the whistleblower behind the story. >Christopher Wylie appeared in front of U.K. lawmakers Tuesday to give evidence about the scandal in which 50 million Facebook profiles were mined for data which was then sent over to Cambridge Analytica, a firm that was caught claiming it handled the digital aspects of President Donald Trump's 2016 election campaign.