I understand how using something like Apple Pay or whatever the android equivalent is is secure, using things like one-time-codes, but how is having a card that can do tap-to-pay secure? Couldn’t someone just copy the wireless signal it gives off and then use that in place of my card?
In: 5
The information being sent by the contactless chip isn’t the entire information stored on the card. Essentially, it’s the same as a chip transaction, it’s a specific response to a specific prompt from the reader, and thus capturing the information doesn’t provide anything useful.
Phone mobile wallets will often take the idea step further and use a disposable account number just for that mobile wallet profile.
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