Unfortunately it is vulnerable people like my 86year old Mum who only has a lap top for emails and to look at Amazon. She believed them as she had no idea how computers work and they said it was infected with a virus and would stop working but they kindly told her they could help if she gave them remote access (though those were not the words they used) they took £400 from her fortunately I was able to remove the programme they downloaded onto her computer and the bank has made sure they cannot take any more money though they could not refund what she had already given them as she gave them her card details. There are some very evil people in this world.