The technology commonly used for contactless payments is Near Field Communication (NFC). NFC allows devices to exchange data over short distances, typically less than 4 inches. This technology is integrated into many smartphones and smart payment cards, enabling users to make transactions simply by tapping their device against a compatible payment terminal. NFC ensures secure and swift transactions, enhancing the user experience while minimizing the need for physical contact. Additionally, NFC technology is used in applications beyond payments, such as ticketing and access control.