I'm not thinking of the card as the weak point, more the reader. a rogue employee putting a false reader that relays to the real reader. Back when I worked in

I'm not thinking of the card as the weak point, more the reader. a rogue employee putting a false reader that relays to the real reader. Back when I worked in retail we had an issue in our local area where a group impersonated our support department and came on site to install altered versions of our readers. I'd imagine things like the readers in our public transport ticketing machines are a pretty easy target too to hide a nearby relay. In Australia our NFC limits are pretty high at ~$100, readers are nearly everywhere and the readers are sometimes display-less plastic discs. Even the local animal shelter has a tap to make a donation thing now.