3 ms·

the restaurant gets my money without ever knowing my card details It's still their hardware. I think what Cushman wants is for the merchant to present the cus

the restaurant gets my money without ever knowing my card details It's still their hardware. I think what Cushman wants is for the merchant to present the customer with a QR Code, the customer scans this with their device and registers a transaction with their bank (possibly adding tip, etc). There are at several ways for the merchant to confirm the payment including notification from their bank, notification from the customer's bank, and notification from the customer's bank returned to the customer's phone (which the merchant could trivially scan and authenticate).

netcan 16y ago
It's still their hardware. That's true, but I think that's the smaller problem. Owning and using hardware built for fraud (presumably banks ordinarily provide merchants with the real ones) would be a serious crime that only outright criminals commit. With credit cards you need to worry about the marginal criminals.
henrikschroder 16y ago
>It's still their hardware. No, they lease them from their bank. :-) But yes, there is still an attack vector there, and I agree that the best solution is one where the business owner gives me payment details, I complete the transaction using my own hardware, and they verify it using theirs. I have a hard time seeing a solution built on smartphones gaining widespread adoption though.