One of the most important tools for web users is Abode Acrobat Reader. This enables the computer to read pdf files, the most popular way of posting documents on the web and in email. Security researchers have identified a bug that can allow viruses and other malware to infect Windows computers.

The solution is to update to the latest version of Acrobat Reader. This can be downloaded for free from Adobe. We'd strongly recommend all Windows user do this.

It should be noted that the latest versions of Acrobat will not run on older versions of Windows. The latest Acrobat versions available for those older system are subject to this bug. Users of older computers should take extra care when surfing the net.