How do contactless debit cards work? <p>Contactless cards use radio-frequency identification (RFID) technology, allowing the card to communicate with the card reader when the card is held near the reader during a transaction.&nbsp; When the contactless card is held to the contactless reader, the reader securely authenticates the card information.&nbsp; The merchant&rsquo;s point-of-sale system sends the transaction to ANB Bank.&nbsp; ANB Bank will then analyze the transaction before approving it.&nbsp; The tap-and-go process usually takes less than a second.</p>