ha? blizzard will sms u the authenticator code each time u want login?

i thought the sms is for alert or notification on password change or some other thing going on for ur bnet account?

sms alert only inform you if they detected any suspicious activity, like somebody try to log or try to change your password and email in your account at other location.

authenticator apps is more safe, because you need to keyin authenticator no. every time you log in to your account and your game.