> Couldn’t someone just copy the wireless signal it gives off and then use that in place of my card?
In theory, but you’d have to do the same thing as tap-to-pay. So you’d need the right equipment (which not that hard to get), and you need to be pretty close (physical contact or near to it) for a long enough time.
Do you walk around holding your card out in your hand, and ignore strangers who are pressed against you for 5-20 seconds, if no then don’t worry about it.
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