https://medium.com/@baratunde/find-out-what-google-and-facebook-know-about-you-31d0fa6d7b61 > Hackers obtained the Social Security numbers of more than 145 million Americans. Paid political chaos monkeys allegedly harvested data from at least 87 million Facebook profiles in an effort to influence the 2016 U.S. election, the Brexit vote, and possibly more. In a practice that could easily become discriminatory, police departments are mining social media profiles in the name of public safety. > These stories are all connected by a common denominator: data. Nearly everything we do online leaves a trail of data that is then combined and analyzed on servers across the globe in a kind of decentralized dossier of human behavior.