Category Archives: Quickpass

“Borrow” Payment Cards with NFC Proxy Hardware

Contactless payments are growing in popularity. Often the term will bring to mind the ability to pay by holding your phone over a reader, but the system can also use NFC tags embedded in credit cards, ID card, passports, and the like. NFC is a reasonably secure method of validating payments as it employs encryption and the functional distance between client and reader is in the tens of centimeters, and often much less. [Haoqi Shan] and the Unicorn team have reduced the security of the distance component by using a hardware proxy to relay NFC interactions over longer distances.

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Posted in Apple Pay, China UnionPay, cons, contactless, contactless payment, DEF CON, defcon 25, NFC, nRF24L01+, PN7462AU, proxy, Quickpass, Unicorn Team, wireless hacks | Leave a comment