Japan's IC card system is similar, and have been integrated across much of the country for universal use in transportation and cash-equivalent purchases. There

Japan's IC card system is similar, and have been integrated across much of the country for universal use in transportation and cash-equivalent purchases. There are essentially two kinds, one that's unregistered, and one where you actually enter your personal information and get your name printed on the card, so that the system can disable the card and the balance can be replaced if the card is lost. At that point it's basically as trackable as any debit card.