Technology · Level 1 · 115 words
The Tap That Pays
Original passage © Studio AM, written for Fluency.
During a contactless payment, a card or phone comes very close to a reader at the checkout counter. The two devices use a short-range radio method called near-field communication. The small range helps make the intended interaction clear to both devices.
The card does not simply shout an account number across the room. Payment systems exchange structured messages, and a transaction can include a changing security value. A phone may first require a face, fingerprint, or passcode.
The reader sends the request onward through payment networks for approval by the card issuer. A successful tap is therefore not money jumping between two objects. It is a brief local conversation that begins a larger checked process.
Source: Written for Fluency. Original passage © Studio AM, written for Fluency.