The Cuckoo's Egg: Tracking a Spy Through the Maze of Computer Espionage, by Clifford Stoll. Doubleday, 1989. 326pp. Jim Gawn, Computing and Information Technologies Center Millersville University Millersville, PA 17551-0302 In August, 1986, Cliff Stoll, an astronomer who had been reassigned to a systems programming job at Lawrence Berkeley Labs (LBL), set out to track down a 75-cent discrepancy in his Unix accounts. The investigation was not completed in the couple of hours that he expected . It took tip most of his work and his life for the next two years, and led to five West Germans being charged with espionage by their government, and to a Pittsburgh resident revealing himself as an agent for the eastern bloc . In the process, to his own surprise, Stoll became a self-taught expert on computer security . He found that the discrepancy had been caused by misuse of a computer by someone logged in from a remote site, someone who was taking care to cover up his tracks . Had this specific accounting error not been spotted, it is likely that the intruder would not have been detected . As it was, Stoll thought it expedient to place wiretaps
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