RT Book T1 Approaching zero: the extraordinary underworld of hackers, phreakers, virus writers, and keyboard criminals A1 Mungo, Paul A1 Clough, Bryan A2 Clough, Bryan LA English PP New York PB Random House YR 1992 UL https://krimdok.uni-tuebingen.de/Record/1614573948 NO Includes bibliographical references (p. [245]-247) CN HV6773 SN 0-679-40938-6 K1 Computer crimes K1 Computer viruses K1 Hackers