Sphinx the Script Kiddie
Unlike Igor, Sphinx doesn’t have deep skills or knowledge. But he does have access to very powerful cracking toolkits that other people have developed and to people who can provide guidance and answer questions. This makes him far more dangerous than he would be if he had to rely on his own skills.
Most of the “hackers” (actually “crackers”) out there are actually like Sphinx. He may do everything from defacing web sites to identity theft and credit card fraud. In many cases he will be looking for targets of opportunity, rather that going after a specific system. He tends to use his cracking toolkits to probe every system he can find, looking for unsecured systems and common security flaws.
Much of your security strategy should be designed for Sphinx. There are a lot of them out there and they can do a lot of damage.