A McAfee study of PCs around the world found that 17 percent had no antivirus protection, and the U.S. outpaced the average with 19 percent of PCs unprotected.

Antivirus vendor Kaspersky Lab has launched a free removal tool for the Flashback Mac OS X malware and a website where users can check whether their computers are infected with it.

A hard-to-detect piece of malware that doesn't create any files on the affected systems was dropped onto the computers of visitors to popular news sites in Russia in a drive-by download attack, according to security researchers from antivirus firm Kaspersky Lab.

Kaspersky Lab has launched Security for Virtualization, designed to centralize the protection of virtual machines running on VMware, the company said on Tuesday at the Cebit trade show.

Avast Free Antivirus 7 is set to be released on Thursday and will have new features including cloud-based updates, remote assistance and file reputation.

If malware were biological, the world would be in the grip of the worst pandemic in history. In 2009, more than 25 million unique malware programs were identified, more than all the malware programs ever created in all previous years. No one need wonder what all that malware is trying to do: It's trying to steal money -- through data theft, bank transfers, stolen passwords, or swiped identities.

Norton today released an updated version of its Norton 360 desktop and mobile security software, while also rolling out a new licensing arrangement for combined PC, Mac and Android use.

Norton today released an updated version of its Norton 360 desktop and mobile security software, while also rolling out a new licensing arrangement for combined PC, Mac and Android use.

RSA's David Walter talk about the synergy between RSA and Archer, as well as the road ahead

Malware targeting Android-powered mobile devices and Apple computers top a list scams and security threats the people need to guard against this holiday shopping season.

Most of us don't like paying for antivirus (AV) software, but at least home users can rely on one of the free options, such as Microsoft Security Essentials, avast!, or AVG Free.

Depending on whom you ask, paying for antivirus software is either a good investment or a total ripoff. In reality, neither viewpoint is accurate. You can find plenty of good reasons to choose a paid antivirus product, and plenty of good reasons to go with a freebie.

Although some like to say "antivirus is dead" because of the explosion in malware that makes signature-based desktop protection harder than ever, start-up Immunet wants to bring new life to antivirus scanning through cloud computing.

It's become an all-too-common scam: A legitimate Web site pops up a window that looks just like a real security warning. It says there's something wrong with the computer, and click here to fix it. A few clicks later, the victim is paying out US$40 for some bogus software, called rogue antivirus.