https://qz.com/1231983/christopher-wylie-the-data-expert-who-exposed-facebooks-breach-has-been-suspended/

Facebook has disabled the account of Christopher Wylie, the 28-year-old data analytics expert who exposed a major breach in the platform that allowed the company he worked for, Cambridge Analytica, to harvest data from tens of millions of users without their permission.

The information was later used by the Trump consultant to profile US voters in an attempt to influence the 2016 presidential election, Wylie says. Cambridge Analytica said on Twitter that it did not use any Facebook data in the 2016 Trump campaign.