Apple Pay is one. Also, in Asia it's very common for a website to display a QR code which you scan with your phone to make a payment, either with your bank's app or with a separate payment platform app. These don't reveal any secret data to the merchant.
Even when using traditional card numbers, many banks offer you the ability to instantly mint as many cards as you like, so you can just generate a card for the specific website. Often you can even lock the card number to that merchant after the first payment.
Even when using traditional card numbers, many banks offer you the ability to instantly mint as many cards as you like, so you can just generate a card for the specific website. Often you can even lock the card number to that merchant after the first payment.