Review: Rating The Latest Antivirus Software

PC World lab tests the latest versions of the major antivirus products and ranks them. The top-rated product: Symantec Norton AntiVirus 2011. (With links to full reviews of each product.)

"If you haven't bought a new version of your antivirus software in a couple of years, now may be a good time to do so. Malware is evolving faster than ever, and the latest generation of antivirus software is better equipped to handle this rapid pace of change. If your antivirus software is a few years old, it may not be able to defend against this on­­slaught effectively, even if you faithfully download new virus definitions. In recent years, the technology that powers antivirus software has changed dramatically: An antivirus package you purchased a few years ago may be able to stop known viruses and other known malware, but brand-new, as-yet unknown viruses can be more dangerous, and newer products do a much better job of stopping them.

So which paid antivirus program should you pick? That's where we come in. PCWorld teamed up with AV-Test (av-test.org), a respected security-software testing lab based in Germany. Together, we looked at 13 paid antivirus products from a number of leading security companies. We provide links here to full reviews of all 13, plus summaries of the reviews' key points."