Changing of passwords

As everyone knows, people are getting smarter everyday and know ways around password protections. So, to keep your WoW account safe, everytime you purchase a product from blizzard or any off-site, please change your password. Don't become a victim like I was of account hacking.
One solution if you're short on change and can't get an authenticator, change your password at least once a week.
This bit of advice goes without saying but it does need repeating...

or get a keyscrambler
http://www.qfxsoftware.com/

and virus protection is ur friend let me share free goodies

malwarebytes adware picks up keyloggers and great little scanner
http://www.malwarebytes.org/

avg antivirus

http://www.avg.com/us-en/homepage

have fun