It’s clear that games are big business, and from the sheer number of password-stealing trojans trolling for your WoW info, it’s also a big attraction for malware.  Blizzard intends to make it more difficult for anyone to log into your account, even if they have your password.An added security feature for those worried about account theft, Blizzard is introducing an Authenticator at this weekend’s Worldwide Invitational (WWI) in Paris. The Authenticator is a piece of hardware (we’re guessing USB-related)