Matt Walker, CCNA, CCNP, MCSE, CEH, CNDA, CPTS, is the IA training instructor supervisor and a senior IA analyst at Dynetics, Inc. He served as the director of network training, curriculum lead, and senior instructor for the local Cisco Networking Academy on Ramstein AB, Germany.Angela Walker, CISSP, CompTIA Network+, CompTIA Security+, is a senior security analyst for Dynetics, Inc.