Company involved in analysing FaceBook data to turn into targeted advertising / political propaganda.

Implicated in Brexit and the election of DonaldTrump

Didn't technically break the law on Brexit. That may have been AggregateIQ

But still a threat : https://www.theguardian.com/uk-news/2020/oct/07/cambridge-analytica-did-not-misuse-data-in-eu-referendum-says-watchdog

But latest leaks reveal Cambridge Analytics were working with AggregateIQ : https://mobile.twitter.com/carolecadwalla/status/1317271632998793218