As stated above, many hoaxes involve viruses or a special kind of virus known as a Trojan Horse. If you receive a notice about a possible computer virus, check it out first. Don't spread it by simply sending it to other people.
Here are some good sites to visit to see if the virus is a hoax.
- How to avoid trojans in your email
- Here is a good compilation of information on computer and Internet hoaxes and viruses you might find useful.