BIG READ: When man meets machine - Amal Graafstra and his bio-hacking body

AMAL GRAAFSTRA had a simple problem. He wanted quick, easy access to his office and didn’t like the conventional options. Instead, he began exploring biometric authentication; things like retinal scanning, hand geometry, facial recognition, and fingerprints.
“Access card technology based on RFID was cheap, reliable, and could be hardened against the elements and vandals.”