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  • ViatorOmnium@piefed.socialtoAsklemmy@lemmy.mlWhy NFC on phones?
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    4 days ago

    How does the phone confirm the payment without a network? With NFC the phone has a low bandwidth connection to the payment terminal that’s enough to sign the transaction.

    EDIT: I found it. It uses special phone codes that still use the mobile network to do the payment. If I understand correctly it would still not work in places where there’s no reception, like some large buildings or air planes.