https://qz.com/1240369/after-cambridge-analytica-some-targeted-ads-on-facebook-will-become-less-targeted/

In an effort to improve public perception about its management of user data, Facebook is going after one of the features that has made it so successful—targeted ads.

On March 28, Facebook announced it will wind down a program that lets its advertisers target users with supplementary data coming from third-party information brokers. The move could potentially dent Facebook’s business model—but comes as public scrutiny toward the company’s handling of personal information increases in the wake of the Cambridge Analytica scandal.