 We're basically seeing scams being done using deepfake videos, people being called by family members or police officers, and basically not able to determine whether that's the real person or not. Back in London, Helen's bank refunded the money she lost, but she still has nightmares about her ordeal. I feel a bit stupid right now, but to think about it, there's no chance I can know that's not real. It's so convincing. Helen Young, ending that report by Elaine Chong.