Currently only External Biometrics are being used, things like finger prints and iris scans. These systems rely on the surface of the body and can be faked.
Internal Biometrics would by exponentially harder to fake.
The best and most reliable Internal Biometric System is Skull Fissure Lines.

These Fissure lines are unique per person and could be scanned by several systems including High resolution sound waves, laser or X-ray.
The technology to scan this is here, but the ability to fake this is decades away if not impossible.
Internal biometrics is the closest thing to living encryption possible
hey look its already here!

1 comment:
Thanks for writing this.
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