Emmett Dulaney has written several certification books on Windows, Security, IT project management, and UNIX. He is the coauthor of CompTIA Security+ Study Guide, Third Edition and CompTIA A+ Compete Study Guide and the certification columnist for Redmond Magazine and CertCities.com.

James Michael Stewart, Security+, CISSP, is a security expert who has authored numerous books and courseware. He is also a regular contributor to C|Net, InfoWorld, and WindowITPro.com.

David R. Miller, Security+, CISSP, MCSE+ Security, is a network engineer and IT security and project management consultant with more than two decades of experience.

Michael Gregg, Security+, CISSP, CIW Security Analyst, is the President of Superior Solutions, Inc., an IT security consulting firm that performs security assessments and penetration testing for Fortune 1000 firms.