Contactless cards are a type of payment card that allows users to make transactions without physically inserting or swiping the card. Instead, these cards use radio frequency identification (RFID) or near-field communication (NFC) technology to transmit payment information when held near a compatible payment terminal. This makes transactions faster and more convenient, especially for small purchases. To use a contactless card, simply tap it on the terminal, and the payment is processed almost instantly. Many banks and financial institutions offer contactless cards, which are becoming increasingly popular due to their ease of use and enhanced security features, such as encryption.