Imagine that some malevolent foreign power sent agents to capture people and force them into military service. Further imagine that some of these conscripts were sent out to capture others until the evil regime had amassed an army of millions. What if all that is required to stop these agents of doom is simply lock your door and ask who's there before opening it? Would you take the necessary precautions?

On corporate networks, employee Internet abuse is responsible for massive losses in productivity and is one of the leading threats to enterprise security. Home networks are not immune to the hazards of an open network. Children may introduce malware through P2P applications, gain access to inappropriate content, and possibly expose their parents to legal liability.