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Ok, how about the fact that it's incredibly visible to begin with? It's being used like a PIN, a PIN that's literally printed right on the card. Who writes thei
by craftyguy 9y ago
Ok, how about the fact that it's incredibly visible to begin with? It's being used like a PIN, a PIN that's literally printed right on the card. Who writes their debit card PIN on the back of their card?
- dragonwriter 9y agoIt supposed to be used as proof that you have physical control of the card, which is why it is on the card and not supposed to be stored. It's not used “like a PIN” as a second factor with the physical card as the first factor, it is used to make online and certain other uses of a card equivalent to card-present transactions with no substantive second factor.