Facebook finds developers sold user IDs for cash

Following on from a Wall Street Journal investigation that uncovered the selling of user IDs (UIDs) to advertisers, Facebook first updated its API to encrypt UIDs and now says it discovered "instances where a data broker was paying developers for UIDs".

However as the number of privacy breaches grows the company will become more acutely aware that avenues it might have thought were open for it to abuse users' personal data are slowly being shut off.