Computer Viruses For DummiesOffers real, practical solutions to help ordinary users keep viruses out of their e mail in boxesand explains how to respond when one slips through. In 2003, there was a major virus attack almost every month, which cost businesses worldwide an estimated USD55 billion and did untold damage to home computers. Computer Viruses For Dummies explains what viruses are and how they work, profiles major anti virus software packages, shows how to keep anti