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And when you swipe your card to check out they have your name, even if you don't use a loyalty card. Name + Face, along with some bluetooth tracking data. They
by jonahhorowitz 7y ago
And when you swipe your card to check out they have your name, even if you don't use a loyalty card. Name + Face, along with some bluetooth tracking data. They can now track you forever, even if you delete the app, stop using your credit cards, etc.
- gruez 7y ago>And when you swipe your card to check out they have your name, even if you don't use a loyalty card I thought the name’s embossed on the card, but not on the magstripe/EMV chip data?
- jschwartzi 7y agoIt's very much encoded in the track data. It may not be in clear-text by the time it leaves the reader but it's encoded in the data.
- gruez 7y agoDo you mind linking to a source? Wikipedia has details on it, but it doesn't say anything about names. https://en.wikipedia.org/wiki/Magnetic_stripe_card#Financial_cards https://en.wikipedia.org/wiki/Magnetic_stripe_card#Financial...
- nkurz 7y agoFrom your link, it looks like "Name" is in Track 1: Start sentinel — one character (generally '%') Format code="B" — one character (alpha only) Primary account number (PAN) — up to 19 characters. Field Separator — one character (generally '^') Name — 2 to 26 characters ...
- gruez 7y agoThanks, not sure how I missed that.
- MilaM 7y agoIt's also part of the EMV Specification and can be read with any nfc or smart-card capable reader. You don't need a special payment terminal. https://www.emvlab.org/emvtags/show/t5F20/ https://www.emvlab.org/emvtags/show/t5F20/ There is one store in my neigbourhod where the payment terminals show this field (my full name) on the screen during checkout. I was very surprised when I noticed this the first time. But apparrently not all card issuers fill the field with correct data. One card, a prepaid Visa from a big fintech, has "N/A" programmed in the field.
- deleted 7y ago[deleted]