We have had two incidents when an account has been hacked in our guild. The first one was Hilda quite a while ago, and the latest is Psykbryt. There are steps to protect your computer from key-loggers and hackers. The best way is to buy the Blizzard Authenticator. (I have just ordered it and will write a small revive about it when I have used it for a while.)
Here are some steps for protection:

Do not install everything.
Only install what you really need and know is spy-ware free.
Use a program to check that the file is free from virus and spy-ware before double-clicking on it.

Only download addons from a trusted site such as www.curse.com and even better use a program to manage the addons such as the Curse client.

Do not buy gold! Or use a power leveling service, they install key-loggers.

Use another browser instead of Internet Explorer, for example Firefox, Opera, or Chrome, or the latest version of Internet Explorer.

Use Anti-virus software, also while you are playing.

Start WoW with the Launcher.
This reduce the risk of key-loggers because the launcher checks for known key-loggers.

Use anti spy-ware software.
Scan your computer every day.

Keep Windows up to date, use Automatic Update.

Do not use Windows XP, instead Windows Vista, Windows 7 or Mac Os. They are all much more secure than XP.
And no matter what people are saying, do not turn of UAC; this is a very good protection as no key-logger can be installed without you giving it permission.

And to be really sure, buy Blizzards authenticator, from Blizzard own store

Copy and pasting the password does not help, key-loggers keep track on that too.
* Spy-ware = programs that spies on you, for example key logger.[/list]

Good stuff Loreno, ill be interested to hear your thoughs on the wow security pen.

/Kolo

I found a very good blue thread on the official forum, http://forums.wow-europe.com/thread.htm ... 3697&sid=1

I recieved a very convincing wow-related phishing mail today. Only 2 things gave it away. The adress from where it was sent and one line in it was in Spanish. I'll post it when I get home.