WoW Insider reported on this over the weekend
, and Blizzard has now confirmed that there has been a security issue with the Mobile Auction House.
There's been a recent increase in unauthorized World of Warcraft account-logins via our website and the World of Warcraft mobile armory app.
We're in the process of notifying any account holders who were not using an authenticator and whose account showed signs of unauthorized access (e.g., logging in from an unusual IP address). If you are among this group, you will receive an email describing how to reset your account.
As a result of these activities, access to the World of Warcraft auction house via the mobile app has been taken off-line temporarily. Upon request, our customer support team will restore in-game items and gold for any accounts impacted.
While no means of account security is guaranteed, every precaution you take to secure your computer and your account-including changing your password periodically-adds another defensive barrier. We strongly encourage everyone to take a few moments to read through the security tips available on our support website and follow the suggestions posted there.
As we mentioned in the original article, a GM had recommended the addition of SMS Protect
to further secure accounts, and using unique passwords for your battle.net account. Also, running virus scans, keylogger scans, and malware scans is an excellent practice.