"It is partly a result of the network design, Machiko-san. You must bear in mind that Intrusion Countermeasures utilize system and network resources. If we use the most powerful IC available to us in every node and in such quantities as to yield us an impregnable fortress, our systems will never be comprised, but we will get no work done because no resources will be available. The Chairman's mininet is not itself heavily defended or routinely monitored by Network Administration. It is, however, defended by the mainframe responsible for the Senior Executive Information System. A decker of sufficient expertise to slip through this mainframe undetected could, once into the Chairman's mininet, do practically anything he or she might want. That at least is my guess. To make sure we are not compromised any worse than we already have, I have initiated measures to enhance our total network security posture."