The following people contributed their hacks, writing, and inspiration to this book:

  • Oktay Altunergil is the founder of The Free Linux CD Project ( and one of the maintainers of (a Turkish PHP portal). He also works full-time as a Unix system administrator and PHP programmer.

  • Michael D. (Mick) Bauer ( writes Linux Journal's "Paranoid Penguin" security column. By day, he works to keep strangers out of banks' computer networks.

  • Schuyler Erle ( is a Free Software developer and activist. His interests include collaborative cartography, wireless networking, software for social and political change, and the Semantic Web. Schuyler is the lead developer of NoCatAuth, the leading open source wireless captive portal.

  • Bob Fleck ( is Director of Security Services at Secure Software. He consults in the fields of secure development and wireless security, and is a coauthor of O'Reilly's 802.11 Security book. The results of his more recent investigations into Bluetooth security can be found at

  • Rob Flickenger ( is a writer and editor for O'Reilly's Hacks series. He currently spends his time hacking on various projects and promoting community wireless networking.

  • Michael Lucas ( lives in a haunted house in Detroit, Michigan, with his wife Liz, assorted rodents, and a multitude of fish. He has been a pet wrangler, a librarian, and a security consultant, and now works as a network engineer and system administrator with the Great Lakes Technologies Group. He's the author of Absolute BSD, Absolute OpenBSD, and Cisco Routers for the Desperate, and is currently preparing a book about NetBSD.

  • Matt Messier ( is Director of Engineering at Secure Software and a security authority who has been programming for nearly two decades. In addition to coauthoring the O'Reilly books Secure Programming Cookbook for C and C++ and Network Security with OpenSSL, Matt coauthored the Safe C String Library (SafeStr), XXL, RATS, and EGADS.

  • Ivan Ristic ( is a web security specialist and the author of mod_security, an open source intrusion detection and prevention engine for web applications. He is a member of the OASIS Web Application Security Technical Committee, where he works on the standard for web application protection.

  • John Viega ( is Chief Technology Officer and Founder of Secure Software. He is also the coauthor of several books on software security, including Secure Programming Cookbook for C and C++ (O'Reilly) and Building Secure Software (Addison-Wesley). John is responsible for numerous software security tools, and he is the original author of Mailman, the GNU mailing list manager.