DANGER - the latest scam...

The con is both fiendishly clever and ridiculously simple. The fraudster cold-calls the customer and tells them that Microsoft has detected a virus on their PC, then invites them to download a piece of remote-assistance software. No doubt reassured by the lines of indecipherable code flitting across their screen, the caller assures the customer they can make the virus vanish – but first, of course, they want payment. £185 to be precise.

Read more at PC-PRO: The unstoppable "tech support" scam

Don't be taken in by people cold calling in this way!  Don't be fooled if they seem to know about problems you think you've been having like, "have you noticed your computer seems to be running more slowly that it used to?" - this is true of all computers!