In April 2001, the then-40-year-old Sullivan--who also wrote on that webpage that he'd relocated from New York to North Carolina to give his family a better quality of life--was sentenced to two years in prison without parole and ordered to pay almost $200,000 restitution. He lost an appeal in February 2002.

Damage by insiders such as Sullivan "is an incredibly fast-growing problem," says Patrick Gray, who worked for the FBI for 20 years until he retired in late 2001 to join Internet SecuritySecurity Systems, a managed security company based in Atlanta. "It's a tough threat that CIOs are going to have to address. Whether you're a Fortune 100 company or a three or four person company, you still have to deal with that biosphere that sits between the keyboard and the chair." Alles zu Security auf CIO.de

Supposedly the wake-up calls came in 1996, in computer sabotage's most famous chapter, when a former systems administrator at Omega Engineering in Bridgeport, N.J., unleashed malicious code that cost the company more than $10 million; in February 2002, Tim Lloyd, 39,was sentenced to 41 months in federal prison and ordered to pay Omega more than $2 million in restitution.

But the bells are still ringing.

This past January, Cumming, Ga.-based software vendor NetSupport worked with the FBI to arrest a sales manager who allegedly offered to sell the company's customer list to at least two competitors for$20,000.