Schiffman Mike. Hacker's challenge 2 test your network security & forensic skills / [Book :] Mike Schiffman ... [et al.]. - New York : McGraw-Hill/Osborne, 2003. - xxv, 322 p. : ill. ; 24 cm. Includes index. All Ages. ISBN: 0072226307 LCCN: 2003545046 Subjects--Topical Terms: Computer security.Computer networks--Security measures.Internet--Security measures.Computer crimes.Computer hackers. LC Class. No.: QA76.9.A25 / H32 2003 Dewey Class. No.: 005.8