AFAIK, the skimmers were on the magnetic readers where you insert the card. Not sure if those ever worked on chip enabled card. I don't see how an add-on skimmer would intercept tap-to-pay. It is usually more secure than the kind that you insert your card into.I think you’re misunderstanding the sign. It means because of fraud as in the card skimmer they have doesn’t work on tap to pay. I remember a recent story where the store clerks were putting skimmers on card readers. If I saw a place like that, I would walk away or pay cash. I definitely wouldn’t trust them with my card.