By now, it’s difficult to summarize all of Facebook’s privacy, misuse, and security missteps in one neat description. It just got even harder: On Thursday, following a report by Krebs on Security, Facebook acknowledged a bug in its password management systems that caused hundreds of millions of user passwords for Facebook, Facebook Lite, and Instagram to be stored as plaintext in an internal platform. This means that thousands of Facebook employees could have searched for and found them. Krebs reports that the passwords stretched back to those created in 2012.
Organizations can store account passwords securely by scrambling them with a cryptographic process known as hashing before saving them to their servers. This way, even if someone compromises those passwords, they won’t be able to read them, and a computer would find it difficult—even functionally impossible—to unscramble them.