> The customer must sign the transaction on the ipad screen with finger (even harder with iphone). it's very hard to check that to the signature on the back of the card.
In my experience, signing works really well. Also, in Sweden nobody checks the signature. I don't even bother signing my card, and I can't understand how anybody can read the signature on the card. I think it's happened once that someone's wanted to check my signature against the card.
I guess that checking the signature is a US thing, in the UK, Switzerland and Spain if you don't pay with a chip & pin card they ask for ID, and that works pretty fine security wise.
In my experience, checking the signature just doesn't happen in the US. In fact, most of the time you seem to be given your card back before you even give them the signed receipt.
Checking the signature was the norm in the UK before chip-and-PIN.
In my experience, signing works really well. Also, in Sweden nobody checks the signature. I don't even bother signing my card, and I can't understand how anybody can read the signature on the card. I think it's happened once that someone's wanted to check my signature against the card.