Chuck Easttom is a security consultant, author, and trainer. He has authored fourteen other books on programming, Web development, security, and Linux. Chuck holds more than 28 different industry certifications including CISSP, CEH, CHFI, ECSA, CIW Security Analyst, MCSE, MCSA, MCDBA, MCAD, Server+, and more. He has served as a subject matter expert for the Computer Technology Industry Association (CompTIA) in the development or revision of four of their certification tests, including the initial creation of their Security+ certification. He also developed the ECES cryptography certification for the EC Council. Chuck is a frequent guest speaker for computer groups, discussing computer security. You can reach Chuck at his website (www.chuckeasttom.com) or by email at firstname.lastname@example.org.