NFC cards account for large chunk of transactions in several countries including India, Hong Kong and Australia. In a network card (Visa\Mastercard) one of the advantage is that the issuers have recourse to the merchant. There are clawback mechanisms. In India, for example, because the legal system is not very efficient the focus is on preventing electronic frauds rather than developing a system for quick recourse. As a result they have multi-factor authentication which slows down transactions. For NFC transactions up to Rs 2000 the second factor has been waived. But the transaction volume is very low so the level of frauds in NFC vis-a-vis EMV cards cannot be compared. Well, just my two cents on this. Got to got now as I monitor my live trading session. Best of luck!