found: Wikipedia, Oct. 26, 2021(Clifford Paul "Cliff" Stoll (born June 4, 1950) is an American astronomer, author and teacher. He is best known for his investigation in 1986, while working as a systems administrator at the Lawrence Berkeley National Laboratory, that led to the capture of hacker Markus Hess, and for Stoll's subsequent book The Cuckoo's Egg, in which he details the investigation. Books: Clifford Stoll (1989). The Cuckoo's Egg. New York: Doubleday. ISBN 0-370-31433-6. Clifford Stoll (1995). Silicon Snake Oil--Second thoughts on the information highway. ISBN 0-330-34442-0. Clifford Stoll (2000). High-Tech Heretic: Reflections of a Computer Contrarian.)
