I got hacked last night, when I logged in this morning I noticed my bank alt had been moved and my guild bank cleaned out. I went to reset my battlenet password and noticed my authenticator had been removed from my account. Since then Blizzard has cancelled my 5 accounts due to abusing the economy. I have a ticket open to get the accounts restored.

Trying to figure out how it was hacked and how were they able to remove my authenticator. I'm running full scans on my PC with Norton and spy hunter? Any other suggestions to verify I have a clean PC?

Thanks