Contactless payment is a secure method for consumers to purchase products or services via debit, credit or smartcards (also known as chip cards), by using RFID technology or near-field communication (NFC). To make a contactless payment, a person simply needs to tap their card near a point-of-sale terminal – leading to the nickname “tap-and-go”. Since contactless payments do not require a signature or a PIN, transactions sizes on cards are limited. The allowable amount for a contactless transaction varies by country and by bank. Examples of non-credit or debit card contactless payments include transit cards, Apple Pay, Android Pay and Google Wallet.