What is the abbreviation NFC?
NFC (Near Field Communication) is a short-range wireless technology that enables contactless data exchange between two devices at very close range – usually up to 4 cm. It is used for payments, data transfer, identification, and other applications in everyday life.
How does it work?
It operates based on radio-frequency identification (RFID). Two devices create an electromagnetic fieldbetween them, allowing them to send information to each other. Communication is fast, secure, and simple, without the need for pairing or connecting to the internet.
Common uses
NFC has a wide range of applications in various fields:
- Contactless payments (Google Pay, Apple Pay, payment cards)
- Travel cards and entry systems in public transport
- Data sharing between smartphones
- Access cards to buildings, hotel rooms, offices
- Promotional materials and NFC tags (e.g., flyers with links)
Security
Data encryption
Data transfer uses encryption, which protects against misuse of information.
Short range
Devices must be physically very close, which minimizes the possibility of eavesdropping or remote attacks.
User authentication
These payments often require PIN code verification, password or biometrically (fingerprint, facial recognition).
What is an NFC token?
In mobile payments, the so-called tokenization is used – instead of actual card data, a unique code (token)) is sent. This token is only valid for a specific transaction and loses its validity after completion, significantly increasing security.
Advantages of NFC
Fast and easy to use
No manual device pairing is required
High level of security
Versatile use in everyday life