> I thought privacy concerns around RFID payment and identification were more to do with abuse by private parties, like recording, spoofing/replay attacks, or j

> I thought privacy concerns around RFID payment and identification were more to do with abuse by private parties, like recording, spoofing/replay attacks, or just private collection. Those are all legitimate concerns, though ultimately a well designed solution would use NFC smartcard emulation with a properly designed applet to alleviate these issues. Unfortunately, most of the time I see people online wanting to figure out how to block RFID signals from their cards it's because they think they can be read from a distance much greater than a couple mm away from the card.