I came across this to day and though it does expound on every virus that 
circulated the net this year it does highlight the costliest virii. Wouldn't 
the projected cost of fighting against and clenaing up from such attacks be 
in favor of not using such an insecure easily exploited system.
http://cnnfn.cnn.com/2001/08/31/technology/wires/virus_re/#TOP

 John Wheat