Computerworld has an article exploring the money side to "black hat" hacking. Author Bob Francis explores the prices of various hacked information – exploit code, IP addresses of trojan infected PC’s, etc. Money quote:
Apparently not all black-hat hackers are making the big bucks, however. I spoke recently with Bill Hancock, Savvis Communications Corp.’s chief security officer and chairman of the FCC’s National Reliability & Interoperability Council (NRIC) Homeland Security focus group on cybersecurity, who says some black-hat hackers are wearing their hats under protest.
Hancock had dinner with a hacker from Eastern Europe last year who said the Russian mafia threatened his family if he did not perform work for them. "I think it shows how serious and how difficult a problem this can be," he says.