Bitcoin under the skin – Why people are using subdermal microchip wallets — CCN — “Dutchman Martijn Wismeijer is very cautious when it comes to storing Bitcoin so much so that in 2014, he had two NFC (near field communication) chips surgically implanted into each hand to store his encrypted Bitcoin keys. Wismeijer stated a number of reasons for the drastic method of storing crypto, saying he had lost the majority of his Bitcoin over the years to exchange failure, hacking, and theft… Wismeijer says he uses his chips every day to make purchases — the process involves scanning the chips with his smartphone to receive and then decrypt the keys in order to make a transaction.”