Authenticator...?

I am not even sure how I am able to write a topic when I can't log in to my account, but what the hell - here I go:

I try to log in to my account, and it says that I need to use the authenticator to verify myself. I never chose to have an authenticator on any of my accounts. And all of the accounts have this problem.

I am not sure what Warmane is really, last time I was playing I went to Molten-wow.com, but that website seems to have been shut down, and people in WoW directed me to this website.

It does not get activated automatically. If you didn't do that then someone else who knew your accounts password has done it. If you have access to your accounts email you can remove 2 step authentication using this page (log out of your account on website before opening it).