What Actually Travels When You Tap to Pay?

What Actually Travels When You Tap to Pay?

Your real card number never leaves your pocket. This is tokenization: a disposable code stands in for your card for exactly one purchase, then dies.

Chapters: 0:00 The tap — card or phone, what travels? 0:08 Wallet checkout — Paid, number still locked in 0:18 The secure element vault — apps denied 0:28 Token mint — one purchase, one code 0:38 NFC flight — 13.56 MHz, 4 cm of air 0:48 Bank lookup — only the bank holds the key 0:58 Hacker payoff — dead string of garbage 1:08 Zero transmitted — recap 1:14 Follow ArbindBuilds — for engineering explained

#taptoPay #nfc #tokenization