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The five finger discount is a risk regardless of payment method and doesn’t have a bearing on which method is superior.

NFC terminals aren’t expensive - especially since they can be a cheap phone now.

QR without validating payment received is probably only viable up to maybe $10USD before the risk of being defrauded is too high.

I bet you’ll find lots of one way QR shops have a phone that they verify they’ve received payment on anyway.




It doesn't have a bearing on which method is riskier, but it does have a bearing on the idea that everyone is going to be generating fake receipts on their phones.

And, yeah, most places do verify based on another phone.


At which point the QR is no better - and probably worse - than the stripe app and an NFC reader.




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