I think the situation has improved in the last 10 years. When I got a fraud call and was asked to authorise I told the agent that I didn't trust them unless I

I think the situation has improved in the last 10 years. When I got a fraud call and was asked to authorise I told the agent that I didn't trust them unless I had a number to call to verify, so the agent on the phone told me to call the number on the back of my debit card. They give every person the number explicitly now.