Digital Lexicon Hub

A short-range wireless technology at 13.56 MHz that lets devices exchange data or emulate cards when held within a few centimeters.

NFC enables tap-to-pay, digital business cards, smart packaging and event check-in, giving businesses a low-friction link between physical items and digital content without asking users to scan or type.

A trade-show booth puts NFC tags in sample cards encoded with an NDEF URI record that points to a tracked landing page; tapping a phone opens the page, and UTM parameters separate tag visits from QR code visits.

The very short range limits use to deliberate taps. Some phones lack readers or restrict background tag reading, and unprotected tags can be rewritten or swapped to point to malicious links.

NFC works by magnetic induction at 13.56 MHz with a typical range of about 2 cm, and passive tags draw power from the reader's field. Devices operate in reader/writer, peer-to-peer or card emulation mode, including host card emulation handled by an app. Tags usually store NDEF messages defined by the NFC Forum, and NFC Forum devices are compatible with ISO/IEC 14443 and ISO/IEC 18092. Phone payments use card emulation with a secure element or host-based emulation.