How Facebook Outs Sex Workers

Leila is a sex worker. She goes to great lengths to keep separate identities for ordinary life and for sex work, to avoid stigma, arrest, professional blowback, or clients who might be stalkers (or worse).

Despite the fact that she’d only given Facebook information from her vanilla identity, the company had somehow discerned her real-world connection to these people—and, even more horrifyingly, her account was potentially being presented to them as a friend suggestion too, outing her regular identity to them.

It’s not a question that Facebook is willing to answer. The company is not forthcoming about how “People You May Know,” known internally as PYMK, makes its recommendations.