You didn't hear about the unique set of characteristics that allowed the virus in and crippled the network? Nobody could have predicted it.. It was a combination of outsourced IT (nobody left to GAF), unpatched computers (patch issued 3 months ago), no computer backup strategy (100mb on home drive to backup resume, recruiter contact info, and short term disability guidelines... employee have to invent own way to backup files.. expose network to viruses), and no IT business strategy