Last week, a variant of the well-known Sober worm (virus) started spreading via email. Some are calling it the biggest virus attack of the year, and a recent article says the infections aren’t slowing down. The email claims that one or more government agencies know you’ve been visiting illegal sites and asks you to fill out a questionnaire. Another variant has a Paris Hilton video attached to it. In either case, avoid opening any emails similar to this and also make sure your anti-virus software is up-to-date. Please read this article for an introduction on computer viruses.