The phone numbers of over 419 million Facebook users have been found in an unsecured database, along with associated names, user ID strings and location data, Wired reports.
It's not clear who owned the now-removed database, but a Facebook representative told TechCrunch that it “is old and appears to have information obtained before we made changes last year to remove people’s ability to find others using their phone numbers.” The database included records of 133 million users in the US, 18 million in the UK and 50 million in Vietnam.