Apparently password generating key chains that are linked by satellites that many high end corporate users use to protect their billion dollar companies have other uses now.  You can use these to protect your WoW account, which is definitely the more important of two.  You can get another job, but do you think you can ever get that epic set back.  I think not.

Blizzard will release a keychain that will generate a one time use password that users will have to enter with their account name and password to be able to log in.  The keychain will retail for about $7.00.  It shouldn't be for the forgetful, because if you lose it the only way to log back in is to call blizzard technical support and supply them with your personal information to get it back.

None of the other MMO companies are looking into this extra security at the moment.  Right now Blizzard is leading the way for security but other companies are looking to see if the idea is successful or not.  If it is, you may have to just carry a keychain password generator for every game you own.