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Battle.net SMS Protect (called "Battle.net Mobile Alerts" in the EU) is a security notification feature associated with a Battle.net account that works via SMS cell phone communication protocol. The service is a system for getting alerts about Battle.net account changes via text messaging and using text messaged security codes to help prevent unauthorized changes to your account.
- Battle.net SMS protect - Increase account security with text message notifications (Bnet WoW D3)
- Battle.net Dial-in Authenticator - Unsupported after August 15, 2012
- Battle.net Mobile Authenticator
- Blizzard Authenticator