Other ingenious methods including using safety deposit boxes, and surfing wallets using TOR or VPN’s and other services. These have come with their own risks which became apparent to the owner of Mr Bitcoin. Martijn Wismeijer also known as the owner of the company responsible for the installation and distribution of crypto ATM’s around Amsterdam and its neighboring countries in Europe.
...
The process begins with a NFC chip which is coated completely in glass. However this chip was roughly the size of thumb as it was inserted by syringe...
Read the full article at http://altcoinpress.com/2014/11/implantable-bitcoin-wallet-the-result-of-a-biohacking-experiment-paves-way-for-future/