Twitter asks users to change passwords after bug exposed them on internal log

Twitter today asked all of its users to consider changing their passwords after discovering a bug that caused them to be stored "unmasked in an internal log."

According to Twitter, the bug has been corrected and it has seen "no indication of breach or misuse by anyone" after an investigation.

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The bug itself is related to the hashing function Twitter uses to mask passwords. Twitter says passwords were written to an internal log before the hashing process was completed, leaving them exposed. From Twitter:

We mask passwords through a process called hashing using a function known as bcrypt, which replaces the actual password with a random set of numbers and letters that are stored in Twitter's system. This allows our systems to validate your account credentials without revealing your password. This is an industry standard.Due to a bug, passwords were written to an internal log before completing the hashing process. We found this error ourselves, removed the passwords, and are implementing plans to prevent this bug from happening again.

Out of caution, Twitter users should reset their password for the service, as well as those for any services using the same password. Now would also be a good time to start using two-factor authentication if you aren't already.

How to change your Twitter password

Dan Thorp-Lancaster is the former Editor-in-Chief of Windows Central. He began working with Windows Central, Android Central, and iMore as a news writer in 2014 and is obsessed with tech of all sorts. You can follow Dan on Twitter @DthorpL and Instagram @heyitsdtl

10 Comments
  • That picture of the Twitter UWP app makes me sad. It's the dark mode I miss.
  • It's Scaling for me like the menu going across left side of the screen at the lower DPI
  • Twitter is like the old CB radios we had when I was younger. At least the CB didn't save the crap so I couldn't avoid it. Your best bet is to not use CB radio or Twitter.
  • You could compare it to life. You can't change your past, so don't do life?? Maybe the message we should all learn is "Don't act stupid now so you don't regret it later."
  • It's not like people have to apologize for things they said years ago in less sensitive times.
  • Maybe PWA's are not a good idea after all.
  • PWA would use exactly the same API to log in as a native app. Or you're trolling...
  • Possibly a deliberate act.
  • GitHub sent out a very similar message to users, both companies said they used "industry standard" cryptographic techniques. I feel like this problem is bigger than they're letting on
  • Missing the dark mode.