this post was submitted on 23 Oct 2025
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Privacy
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I will check on that but I had thought that the point of moving from mag stripe to chip cards was to stop exposing the card number. The is instead a 2 way encrypted conversation between the chip and the bank server. I had expected the phone app to do about the same thing.
Also, payment terminals (I was once pretty familiar with them) are likely to be more secure than phones.
Yeah you’re right. Mastercard says tapping your card also sends a tokenized version or the card number.