Check Clipper Card Balance

Smart card - Wikipedia
A smart card, chip card, or integrated circuit card (ICC), is any pocket-sized card that has embedded integrated circuits. Smart cards are typically made of plastic. Many smart cards include a pattern of metal contacts to electrically connect to the internal chip. ... Read Article

MIFARE - Wikipedia
Proximity check against relay attacks; enabling travelers to reset their card balance and travel for free in a talk entitled "NFC For Free Rides and Rooms Clipper card: United States (San Francisco Bay Area, California) MIFARE DESFire ... Read Article

CONNECTION (RTC) Clipper Discount ID Card
CONNECTION (RTC) Clipper ® Discount ID Card Getting Started with Clipper to check your Clipper card to ensure you have paid. When entering the Check your balance. Look at the card reader display when you tag your card. ... View Doc