Think an eticket is cutting edge? How about using a biometric implant? Recently, companies have been experimenting with novel ways to pay, such as a credit card that uses biometric fingerprinting and cashless payment methods. Now, state-owned Swedish rail operator SJ is the first travel company in the world to allow passengers to use a biometric chip implanted in their hand instead of a paper or eticket. At the moment, the scheme is only available to people who already have the biometric implant. Since around 2015, some tech companies in Sweden, such as startup hub Epicenter, have begun implanting their employees with the chips, which are injected into the hand and can be used to open doors, operate printers, or buy smoothies in the company cafeteria with a wave of the hand. The tiny chips use Near Field Communication (NFC), the same technology used in contactless credit cards and mobile payments. When activated by a reader data flows between the two devices using electromagnetic waves.