Many nights after most employees had gone home, the main computer at Sperry Univac's office near Philadelphia continued to hum. Two programming supervisors, David E. Kelly and Matthew Palmer Jr., had taught the machine to store and print complicated arrangements for musical groups, which the two then peddled to stores and bands. In the course of three years, the entrepreneurs bilked Sperry Univac out of some $144,000 in computer time. And they might never have been caught if another employee had not informed on them.
The incident was a new twist in one of the fastest-growing industries in the U.S.: computer crime....