a few years ago I got a email saying I had won a large cash amount, I do a lot of comps and it seemed possible!! They wanted the bank info, DOB etc, which luckily I didn't give out. It gave all the info including the courier delivering the cheque, so after calming down, we got in touch by phone, the number was genuine, and spoke to the courier ( a big international company), alarm bells began to ring when the person in charge had no information at all regarding this, he was quite concerned himself too and after some investigation, we concluded it to be a scam. Luckily, we didn't go down the personal info route, so no problems there, but just to show, even a savvy person can get sucked in to these scams. Be careful out there.