Keith J. Jones, contributing author of Hacker's Challenge (Osborne), is a computer forensic consultant for Foundstone, one of the top security firms. His primary area of concentration is incident response program development and computer forensics. Mike Shema is the CSO of NT Objectives and has made web application security presentations at numerous security conferences. He has conducted security reviews for a wide variety of web technologies and developed training material for application security courses. He is also a co-author of Anti-Hacker Toolkit. Bradley C. Johnson (Gaithersburg, MD) is the manager of the Network and Security Group at Viaken Systems, a biotech IT provider in Gaithersburg, MD. He has a great deal of experience with tools used to protect and monitor computer networks, such as firewalls, intrusion detection systems, vulnerability and port scanners, network-wide system monitors, and log archival tools. Additionally, Mr. Johnson has a strong programming background in C/C++ and Perl and has helped develop and implement custom network security tools.
