What is a nfc tag on cash app?

A NFC tag on Cash App is a small electronic chip that uses Near Field Communication technology to communicate with a user's smartphone. It can be used to make fast and secure payments through the Cash App without the need for cash or credit cards. The NFC tag is a physical sticker that can be attached to any surface, and once scanned, it will automatically authenticate the transaction and transfer funds to the recipient. It is a convenient and secure way to make transactions and has gained popularity as a contactless payment method.