Maximum Linux Security

Anonymous is an experienced computer hacker who specializes in testing security of various networking platforms. He was convicted of a series of financial crimes in the late 1980s and now works as a writer, trainer, and security consultant.
Greg Shipley is CTO for Neohapsis, an information security consultancy. He is a contributing editor with Network Computing magazine.
Jonathan Feldman is a contributing editor with Network Computing magazine, where he writes a column and frequently contributes technical workshops.
Robert Blader works at the Naval Surface Warfare Center, where he performs intrusion detection, security training, and network forensics. He has contributed to SANS GIAC courses and SysAdmin magazine.
Chad Cook has worked for ten years in security, with emphasis on secure product architecture, network and operating system security, and new security technologies.
David Harley maintains a number of virus and security related information resources and writes regularly for Virus Bulletin.
Joe Jenkins is a system administrator/security consultant with NoWalls, Inc. and writes for magazines such as SecurityFocus.
L.J. Locher is a network adminstrator, programmer, and security consultant who has written articles for Windows 2000 Magazine.
Toby Miller is a security engineer for Advanced Systems Development and is the author of several papers published for SecurityFocus and the SANS Institute.
Brooke Paul works as an information technology and security consultant.
Nicholas Raba is a well-known expert on Macintosh security.
Gregory White is Vice President of profession services at SecureLogix, and is a former professor of computer science at the US Air Force Academy.