Mike Pastore has worked in IT for over 25 years. He currently does consulting in systems implementation for the Shepherd Group in Bellevue, Washington. Emmett Dulaney has written several certification books on Windows, Security, IT project management, and UNIX. He is the certification columnist for Redmond Magazine and CertCities.com. David R. Miller is a network engineer, IT security and project management consultant with more than two decades of experience. Michael Gregg is the President of Superior Solutions, Inc., a Houston-based IT security consulting firm. His organization performs security assessments and penetration testing for Fortune 1000 firms. James Michael Stewart is a security expert who has authored numerous books and courseware.