Avoid the obvious ones
If you get an odd error message after logging in to what you think is an official NCsoft site, change your password at the correct NCsoft site immediately. Please carefully check the spelling of the address in your browser.
Beware of key logger links on forums. Sword of the New World money is akin to the previous point on phasing. Key logger links are created as forum spam to get you to go to a website loaded with attacks on your computer through web browser security holes. Some of them are very obvious, such as the recent Wii sex toy ads posted everywhere. Some of them appear very innocent. Avoid the obvious ones. Protect your browser from the less obvious ones by ensuring that you are using the latest version of your web browser and that it is set to automatically update itself when new security holes are found.