Another young hacker who underwent the procedure at Toorcamp said he hopes to install an RFID access system at the door of his local hackerspace.

FORBES: Want An RFID Chip Implanted Into Your Hand? Here's What The DIY Surgery Looks Like (Video)

So should you stand behind the closed door the system won't trigger access to those outside.

ENGADGET

For those concerned about leaving your phone too near the door and thereby allowing anybody access, the system actually uses two antennas, one on the inside and one out.

ENGADGET

The key system allows given access to the door for particular people, which is on the phone.

FORBES: AT&T Will Transfer Data Through Your Bones