Report: Facebook stored 200-600 million user passwords in plain text for years

Facebook is investigating whether employees may have stored hundreds of millions of user passwords in unencrypted plain text dating as far back as 2012, according to a report by security researcher KrebsOnSecurity.

Citing an anonymous senior Facebook employee, Krebs reports the passwords may have been searchable by more than 20,000 employees of the social media giant, whose data practices have been called into scrutiny repeatedly in recent months.

Facebook has declined to speak on any specific numbers yet, but Krebs' investigation so far has determined that anywhere from 200-600 million users may have been affected.