From your friends at Twitter today:
When you set a password for your Twitter account, we use technology that masks it so no one at the company can see it. We recently identified a bug that stored passwords unmasked in an internal log. We have fixed the bug, and our investigation shows no indication of breach or misuse by anyone.
Out of an abundance of caution, we ask that you consider changing your password on all services where you’ve used this password. You can change your Twitter password anytime by going to the password settings page.
Passwords stored in plain text are never a good thing. Twitter further adds “we have no reason to believe password information ever left Twitter’s systems or was misused by anyone.”
The social network also apologizes to say “We are very sorry this happened. We recognize and appreciate the trust you place in us, and are committed to earning that trust every day.”
Click here to change your Twitter password (yes, that means all 330 million of you).