The security company has released a virtualisation offering for web browsers, which aims to confiscate malware picked up from malicious sites or drive-by downloads as soon as the user finishes browsing.

Checkpoint has released a virtualisation offering for web browsers, aimed at preventing users from unwittingly downloading malware.

With the release of ZoneAlarm ForceField, the security company is trying to prevent malicious or compromised websites from harming users' machines.

"By virtualising the browser, and adding active security layers, ZoneAlarm ForceField provides the highest level of technology needed to stop web attacks, without interfering with users' browsing experiences," said Laura Yecies, vice president of Checkpoint's ZoneAlarm division.

The theory is that all unknown or unwanted changes made by code from websites or drive-by downloads are made to a virtualised file system, which disappear once the user has finished surfing.

Checkpoint says that ForceField virtualises only those parts of the user's operating system that interact with the internet, being far easier than implementing a full virtual machine.

The software, which is downloadable from Checkpoint's site for £19.95, works with the Internet Explorer and Firefox browsers. Checkpoint says ForceField will work in conjunction with other vendors' anti-virus and firewall software.