I believe he's referring to the current scan card + signature combo, which is very well known for being insecure because you t can be man in the middled, and th

I believe he's referring to the current scan card + signature combo, which is very well known for being insecure because you t can be man in the middled, and the card is transmitting enough of it's information to duplicate the card if that data was captured by a skimmer.