After forty years in the commercial computing business, the one idea that has been drilled into me by security professionals is the fact that there is no such thing as a secure computer system, only levels of insecurity. Therefore the cost of keeping the information and system secure has to be balanced with the cost of losing that information or system, or having it damaged. Unfortunately the speed and availability of the Internet combined with the low cost of very powerful computers and network services have made the cost of “cracking” go down and the cost of “securing” go up.