With the advent of the internet has come a history of computer viruses that have wrecked havoc on networks across the planet. Here is a top 5 of the worst offenders.

5. MyDoom

This virus struck in February of 2004. Even worse is that the public had to contend with a series of different versions of this virus over the space of a year. First was a virus program that forced thousands of high-jacked computers to participate in denial of service attacks. Second was a version of MyDoom that searched computers for e-mail addresses. These addresses were later used to slow down or crash several high profile search engines with millions of illegitimate search requests.

4. Sapphire

This virus attack began in January of 2003. Unfortunately, most computers at the time were not prepared. This web server based virus managed to produce an astounding one billion dollars in damage over its lifespan. Some of its high profile victims included The Bank of America’s ATM machines, the city of Seattle’s 911 service, and Continental Airline’s electronic check-in and ticketing systems. [Read more...]