To be honest, that doesn't seem any less secure than requiring a signature. It's a lot more effort to make a spoof card like that, more effort than the 5 minut

To be honest, that doesn't seem any less secure than requiring a signature. It's a lot more effort to make a spoof card like that, more effort than the 5 minutes of practice required to vaguely copy someones signature and get it past a disinterested, minimum wage store clerk.