If you have an account with Twitter, you need to change your password ASAP. Twitter fixed the bug and believes it didn't leave their system....but just to be safe, they recommend changing it.
We recently discovered a bug where account passwords were being written to an internal log before completing a masking/hashing process. We’ve fixed, see no indication of breach or misuse, and believe it’s important for us to be open about this internal defect. https://t.co/BJezo7Gk00— jack (@jack) May 3, 2018