Dá sa to riešiť aj cez aplikáciu v smartfóne. Blizzard má Battle.net Mobile Authenticator pre Android, iPhone aj Windows Phone 7.
http://itunes.apple.com/us/app/battle.net-mobile-authenticator/id306862897?mt=8sdsdasdasdjghdas
https://play.google.com/store/apps/details?id=com.blizzard.bma&feature=search_result#?t=W251bGwsMSwxLDEsImNvbS5ibGl6emFyZC5ibWEiXQ..
http://www.windowsphone.com/sk-SK/apps/1347bbfb-bca2-e011-986b-78e7d1fa76f8 ;-)
Bird