Facebook Doesn’t Tell Users Everything It Really Knows About Them

The site shows users how Facebook categorizes them. It doesn’t reveal the data it is buying about their offline lives.

by Julia Angwin, Terry Parris Jr. and Surya Mattu

ProPublica, Dec. 27, 2016, 8 a.m.

https://www.propublica.org/article/facebook-doesnt-tell-users-everything-it-really-knows-about-them