Kaspersky Lab - Anti-virus, Anti-spam & anti-spyware

What they say:

"Computer users worldwide choose Kaspersky Lab because it offers the world's most immediate protection against viruses, spyware and internet threats. The world-renowned Kaspersky Lab disarms up to 200 viruses a day and provides unprecedented security with the industry's only hourly anti-virus updates. The Kaspersky Spam Lab evaluates 35 million messages each day and provides updates every 30 minutes. Kaspersky Lab truly sets the standard with a complete line of anti-virus, anti-spyware, anti-spam and anti-hacker solutions. Kaspersky Anti-Virus provides exceptional detection rates of all kinds of viruses and rapid response to the newest threats. Kaspersky Personal Security Suite is full-scale defense against viruses, hackers and spam. It also provides exceptional and reliable protection against spyware."