CEH Certified Ethical Hacker All-in-One Exam Guide, Second Edition
Matt Walker, CEH, CPTS, CNDA, CCNA, MCSE, is an IT security architect for Hewlett-Packard at Kennedy Space Center. He has held a variety of networking and IT security positions, including most recently the IT security manager position at Marshall Space Flight Center (SAIC contract) and Kennedy Space Center (Lockheed Martin contract).