https://www.cnbc.com/2018/03/16/facebooks-secret-police-catchers-leakers-former-employee-alleges.html

Facebook and CEO Mark Zuckerberg deploy a "secret police" to catch leakers in the company, The Guardian reported Friday, citing a person who worked there.

The unnamed employee said he was called into a meeting last year under the guise of a promotion and found himself in front of Facebook's investigative team armed with proof he'd been leaking to the press.