How NFC & Contactless Payments Work
Inductive magnetic coupling at 13.56 MHz transmitting tokenized cryptographic payment payloads in milliseconds.
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Step 11. 13.56 MHz Field Induction
Payment terminal POS generates alternating magnetic induction field.
The POS reader continuously radiates a 13.56 MHz near-field electromagnetic carrier field.
Step 1 of 4How NFC & Contactless Payments Work
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NFC uses an invisible magnetic field to power a payment card or phone coil within 4 centimeters, transmitting a secure one-time code for instant checkout.
Key Takeaways
- ✓NFC = Near Field Communication.
- ✓Works only within ultra-short distances (<4 cm) for security.
- ✓Transmits dynamic one-time tokens, so your actual credit card number is never shared.
Tap to Pay in Milliseconds
When you tap your phone or smartwatch against a payment terminal at a coffee shop, you are using Near Field Communication (NFC).Unlike Wi-Fi or Bluetooth that broadcast signals across entire rooms, NFC creates a tiny magnetic field that only reaches 4 centimeters. Because the range is so small, nobody can accidentally steal your payment from across the street.Interactive Challenge+25 XP