The Battle.net Mobile Authenticator for BlackBerry is an app for BlackBerry OS 5 and 6 that increases account security by adding an additional secure password to your login process.
The app is a good free alternative to their existing $6.99 keyfob and offers all of the same security benefits. Players of World of Warcraft, Starcraft 2 and Diablo 3 will love the piece of mind that they have an account that can’t be hacked by anyone but the X-men.
For those who aren’t in the loop, the items found in a well-developed World of Warcraft or Diablo 3 account are worth hundreds of real-life dollars.
After downloading and setting up the app, head over to Blizzard to register your authentication app.