It is sub-epidermal, so maybe it is really more complex then just pressing photocopy of a fingerprint in front. Also, I think the steel ring around the button d

It is sub-epidermal, so maybe it is really more complex then just pressing photocopy of a fingerprint in front. Also, I think the steel ring around the button detects capacitance. Pretty sure, these cases have been evaluated by their engineers. Afterall, Apple will know about it, their ipad was used in MI to get into Kremlin. Ha.