Years ago the company i worked for was affected by the nimda virus. Everybody was told to go home (more than 1500 people).
Somehow i still find it very very strange that major companies which are inredibly dependent on electrical technology hardly take any precautions to withstand its problems and limitations.
Do you really need all your people to surf the internet? Do you really need your entire network exposed to the internet? Do you really don't need UPS/generators?