If you're a Windows user, there are so many threats to your system you wonder if it's safe to do anything with your machine. Only today the BBC reported that UK identities were available for £80 per person. Problem is that we're now encouraged to use our computer to access our bank account, pay bills and other sites that require a password. Most security tools will stop a virus attached to an email, an application or a tool that attempts to get behind your firewall. However, you can quite easily make your PC vulnerable by installing (legit) software.17 Nov 2008