41 Training in the use of a simulated enterprise network computer environment, said simulation consisting of simulated hardware, software, servers, workstations, portable computers, routers, switches, and security elements, namely, router firewalls, proxy servers and network address translation devices, for the foregoing equipment for computer security interdiction training; Educational testing services, namely, the testing of others in the field of computer security interdiction, using a simulated enterprise network computer environment, said simulation consisting of simulated hardware, software, servers, workstations, portable computers, routers, switches, and security elements, namely router firewalls, proxy servers and network address translation devices, for the foregoing equipment; Organizing educational competitions in the field of computer security interdiction, using a simulated enterprise network computer environment, said simulation consisting of simulated hardware, software, servers, workstations, portable computers, routers, switches, and security elements, namely router firewalls, proxy servers and network address translation devices, for the foregoing equipment; Providing training in the use of computers for all aspects of computer network attack, defense, response and investigation