Social engineering is one of the commonest causes of fraudulent attack today. Typically someone from “your bank” or “Microsoft” or “BT” or “Virgin” will call and say they can fix a problem with your account if you download a file or run a program. This kind of contact is always fraudulent. If you do allow access, the hacker will harvest passwords, email and contract details, bank details etc. and probably ask for your card details for “fixing” your problem. If you’re unfortunate enough to fall for such a scam, disconnect from the internet, turn off the PC and bring it into us for full virus scan. Also contact your bank and card provider to make them aware you have been scammed.