> this would totally work with my mom, who after many years of visiting me in the USA is still afraid of giving her card to the waiter in a restaurant to pay fo

> this would totally work with my mom, who after many years of visiting me in the USA is still afraid of giving her card to the waiter in a restaurant to pay for dinner To be fair - her instincts aren't bad. It was always a shitty security model, it led to a lot of fraud, and it was one of the design principles of Chip and Pin to eliminate it.