https://www.vox.com/technology/2018/3/22/17152478/cambridge-analytica-facebook-zuckerberg-trump-privacy-whistleblower-scandal

Political consulting firm Cambridge Analytica reportedly used secretly harvested personal data from 50 million Facebook users as part of its work on the 2016 Trump election campaign, according to whistleblower Christopher Wylie and others. The revelation raises several ethical and legal concerns about cybersecurity, big data, and privacy, putting the company and its CEO Alexander Nix, as well as Facebook and its founder Mark Zuckerberg, under intense scrutiny.