Unfortunately senior citizens fall for this all the time. My mom got compromised last year by a Windows virus scammer. She gave them the credit card # to buy the anti-virus protection, etc. Last month she got a call and told me her computer had the ransomware virus that was in the news. She unplugged the computer, was freaked out, and called some yokel bubba who tinkers with computers. I told her to cancel the appointment, the PC was old and not worth putting any money into. 3 weeks later when I finally got to it, there was no virus. She just thought it had a virus because thats what somebody on the phone told her, and there was chatter on the news about computer viruses. That said, it was an old unsupported version of Windows, which I'm wiping and putting on a very easy Linux installation that looks a lot like older Windows. All she knows to do is play solitaire anyway and look for stuff at Lowes. I told her never to buy anything online because she doesn't know what she is doing, but she probably won't listen.