While not as big as last week's LinkedIn passwork leaks, a small time Twitter app Tweetgif.com was hacked releasing 10,000 Tweetgif accounts. Tweetgif is an OAuth-based app, though no Twitter passwords themselves wree leaked, only OAuth tokens which grant access to the Tweetgif app.

If you used the app, head to Twitter's settings and revoke access to the app. You don't have to change your passwords, but in any case if you're worried, just do one quick change for good practice sake.

PC World]