Attaching a Mobile Blizzard Authenticator to Multiple Accounts

Physical authenticators, or key-fob authenticators, can only be attached to one Blizzard account at a time. The free Blizzard Moble Authenticator app can be attached to up to three different Blizzard accounts at once.

To add your Authenticator to an additional account, follow these steps:

1.  Log in to the new account on the Battle.net website
2. Navigate to the security options on your Account Management Summary page.
3. Click "Add Security"
4. Click "Set up your authenticator" under "Already have the Blizzard Mobile Authenticator?"
5. Follow the steps to confirm your email address
6. Fill in your serial number from your authenticator app menu under "Serial & Restore"
7. Enter your current randomized authenticator code found on the main authenticator app screen under "Enter code manually"