Comment by consp

> Or is it skimmer-proof?

Put a reader with a shield on the pad and a new pad on top and a small terminal in somewhere out of sight. You won't know the difference. Requires infrastructure though so it is a bit more complicated and a lot more noticeable. Likely used the non-pin entry limit which is always reset after you payed a large amount and had to enter your pin. Not like the strip readers of olden days.

Anecdote: We had a "chip charge" system where you put money in your card via a ATM like device and those sometimes had strange "extensions" in front of it which read your chip while you charged it and immediately took the money. People often don't know what too look for when it comes to skimming devices and with tech it may look like a strange but genuine device.