Then you can just write it down. You don't have to use the imprint, it's just to... | Hacker News

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olyjohn on Oct 4, 2023 | parent | context | favorite | on: D.C.'s ban on cashless businesses takes effect

Then you can just write it down. You don't have to use the imprint, it's just to help reduce error and make it a bit faster.

rtkwe on Oct 4, 2023 [–]

There's a secondary point to the carbon copy machine. It proves the person possessed and presented the card which is a level of proof against fraud.

extraduder_ire on Oct 4, 2023 | [–]

Maybe prove in a legal/compliance sense. It's not too complicated to emboss numbers and letters onto a plastic card.

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