5/3/18 – Twitter advised all users to immediately change their passwords due to a bug that exposed user passwords in plain text. There is currently no evidence that any misuse of user passwords has occurred, but are advising to not only change your password on Twitter, but anywhere else users may have used that Password.
The bug seems to have occurred due to an issue in the process that masks passwords by replacing them with random charachters and due to an error with the system, passwords were being saved in plain text instead of being masked.
Twitter is urging all of its more than 330 million users to immediately change their passwords after a bug exposed them in plain text. While Twitter’s investigation showed that there was no evidence that any breach or misuse of the unmasked passwords occurred, the company is recommending that users change their Twitter passwords out of an “abundance of caution,” both on the site itself and anywhere else they may have used that password, which includes third-party apps like Twitterrific and TweetDeck.
You can read more about the current Twitter password security issue here