An Islamist hacktivist going by the moniker “Mauritania Attacker” claims to have hacked and accessed the entire database of Twitter accounts. As proof of this exploit, he has published details on 15,000 accounts that included access tokens users have generated for other applications that use Twitter either as an authentication source, or as a means to publish data from or to the microblogging service. According to representatives from Twitter, no accounts have been compromised, and the account details released by the hacker did not contain passwords (hashed, encrypted or otherwise). Security analysts suspect that it may be possible to use the exposed security tokens to gain limited access to publish through the associated Twitter account via third party app (which is what the tokens are for in the first place) if a hacker could ascertain for which app a specific token was created.

What this means for you:

If you use Twitter, you should do two things:

1. Enable login verification by going to your Twitter settings -> Account -> Login Verification. This basically sends out a confirmation to your mobile device that must be entered in order to log into your Twitter account.
2. Revoke permissions to Twitter-enabled apps. You can do this by going to your Twitter settings -> Apps and clicking “Revoke Access” next to every app on the list, even the ones you might use frequently. Then, you can go back to your favorite apps and reauthenticate. This way, you can recreate the access tokens, and not have to worry about the possibility that your access tokens were among the ones shared by the Mauritania Attacker.