Any chance you can expand on that a bit as I'm not aware of that.
No personal card data is transmitted from the phone to the reader just encrypted tokens.
I have no personal idea. I was a skipper on hi tec crime back before this was a thing, and my successor mentioned it while chewing the fat with him a while back. I don't think the data exchange itself is of use, but it provides a means of access to either system or device, I don't know which.
The official line is that it can't be hacked, but that is of course bull. People have gone to prison for it in the US.
Its also been cracked in the oppisite direction and used to make payments with stolen card details, which is supposed to be frighteningly easy.
Nothing is impregnable, and despite Apples haughty talk of security on their handsets we used to crack them with relative ease using a system called KIOSK (and any we couldn't Cellebrite would crack for us), so don't believe a word Apple say.
Ill hopefully see my man next week at my bands gig so I'll pick his brains a bit.
Anyway, having worked on hi tec crime is the main reason I refuse to have a smartphone. The ways in which you can be f****d over via your smartphone are too extensive to even list.