Oh for some public PSA adverts warning people about trusting emails, website ads or cold phone calls to not poison their computer.
I'm kind'a surprised people are still falling for it. If a government agent phone me up with my national insurance number, place of birth and known political affiliations (philosophical anarchist), I would still ask that he (or she) send me a snail mail letter with a phone number that I could verify as being a UK gov based number before refusing to let him (or her) near my PC (at least without a warrant).