Why do hackers make viruses? There are a lot of reasons, but many malware masterminds just want to leave their mark on the world. Here are eleven examples of seriously intense viral attacks. Melissa As email began to become the preferred method of business communication, it became only natural for virus makers to start treating it as a disease vector. One of the first worms to get major attention was the Melissa virus, created in 1999 by David L. Smith and named after a stripper he had a crush on. Sent through an email, it was built on a simple Microsoft Word macro - if you opened the attached document, it would automatically replicate itself and re-send to the top 50 names in your address book. Melissa crashed multiple networks before it was contained, but it was only the beginning. Pikachu As more and more people started using email in their daily life, it's not surprising that virus makers are targeting kids with their work as well. The 2007 Pikachu worm is widely regarded to be...