The Computer Underground. The beginning of the electronic communication revolution that started with the public use of telephones to the emergence of home computers has been accompanied by corresponding social problems involving the activities of so-called "computer hackers," or better referred to as the computer underground (CU). The CU is composed of computer aficionados who stay on the fringes of legality. The CU is composed of relatively intelligent people, in contrast to the media's description of the ultra intelligent and sophisticated teenage "hacker." The majority have in common the belief that informat