Technical Guide

EMV contactless transactions, commonly known as "tap-to-pay" or "wave-and-pay," allow cardholders to complete card-present payments by holding a dual-interface chip card, wearable, or mobile device within ~4 cm of an NFC-enabled terminal. These transactions adhere to the same cryptographic...

(From Apple Pay documentation, EMVCo, Visa/Mastercard token specs – December 2025) What is DPAN? DPAN stands for Device Primary Account Number. It is the tokenized card number unique to a specific device (iPhone, Apple Watch, Mac) in Apple Pay. Key Facts: DPAN is not the real PAN (Primary...