Hacker? Cracker? Web Surfer With Malicious Intent? - What Shall We Call Them?

This comes up again periodically- this question of whether an unauthorized intruder who infiltrates your computer network is a "hacker". True hackers bristle at the "mis-use" of the term. So, what exactly should we call someone who attacks your computer system or network? What exactly is wrong with calling them "hackers"? For more of my thoughts on the subject you can read this article that I originally posted last summer: What Is In A Name?