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The original implementation of credit cards was paper based. You made a carbon copy of the bank card and a signature taken. And the pin can be verified using
by 7952 3y ago
The original implementation of credit cards was paper based. You made a carbon copy of the bank card and a signature taken. And the pin can be verified using the card alone.
- bombcar 3y agoSmaller places in the USA will still bust out the carbon copy machine during outages, but they then have to bitch at the processor to get lower fees (often the fees are higher for non-instantly verified transactions).
- lxgr 3y agoThat can't be true anymore, at least not the carbon copy part: None of my US credit cards are even still embossed in the way necessary for them to work in these. Merchants can just note down the card number and manually charge it, though. I've definitely had that happen in the past somewhere. The downside is that the merchant is fully on the hook for chargebacks for such payments.