Michael T. Simpson is president/senior consultant of MTS Consulting, Inc., specializing in network security and network design. Mike's certifications include CEH, CISSP, Security+, OSSTMM Professional Security Tester (OPST), OSSTMM Professional Security Analyst (OPSA), MCSE, MCDBA, MCSD, MCT, and OCP. He has authored or co-authored eight books and has more than twenty-four years of industry experience, including fifteen years with the Department of Defense (DoD), where he designed and configured computer networks and served as an Oracle database administrator, UNIX administrator, and information systems security officer (ISSO).