Authenticator Question

[Dorkman007]

I have 2 accounts in WoW, and I haven't been playing regularly on my 2nd one. Now, today I try to log into it, and it asks me to input an authenticator code. I'm totally baffered at the moment, seing as I've never purchased any authenticator. Nor do i have any e-mails about this issue.
Anything i could/should do?
On a side note, i was wondering if there's going to be another wave of beta invites, can't seem to find any information anywhere.
thanks in advance,
Drona

[Aliadra]

How does people not understand this yet?
Clean your computer of keyloggers, call Blizzard and have them remove the authenticator, change your password, attach your own authenticator.

[Dorkman007]

How does people not understand this yet?
Clean your computer of keyloggers, call Blizzard and have them remove the authenticator, change your password, attach your own authenticator.

I don't have any keyloggers on my comp. haven't been on that account in weeks but I've been on my other account and that#s working perfectly fine. I doubt they would want this account anyways, it was inactive for ages and after i rerolled, i didn't have any chars on it as far as i know. TBH, i think i just used this to recruit a friend.
EDIT: don't you get any kind of e-mail when you get an authenticator attached to your account? i dont have any in my inbox