In the wake of the Cambridge Analytica scandal, which revealed one of the worst abuses of personal information by a corporation in history, trust in Facebook's handling of private information has plummeted. This is evidenced by a new survey run by Recode and SurveyMonkey, where 56% of those surveyed stated they trusted Facebook the least. The next choice was Google at a mere 5%.
https://www.notebookcheck.net/Facebook-is-now-the-least-trusted-tech-company-when-it-comes-to-personal-data-and-it-s-not-even-close.296912.0.html