Strange, of course, but quite a natural question - is it possible to unlock a smartphone using a dead body? The fingerprint of the corpse does not change, and in films it is often shown - cut off the finger and voila, went where necessary.
And more recently in the United States there was such a case that it was necessary to get access to the smartphone of the deceased - who was a terrorist.
Will the dead man's finger work?
For example, about the case of a terrorist in the USA. He managed to kill 26 people and injure 20, and when the local police rushed in, the offender was found shot to death near his car. Whether he was killed by a member of the parish or committed suicide is unknown, but Apple has offered to assist the Federal Bureau of Investigation in unlocking the killer's iPhone. The criminologists did not need help - they unlocked the iPhone on their own, and the method used, of course, is kept secret.
Perhaps the FBI agents just put the dead man's finger on his iPhone and unlocked the smartphone using a fingerprint? Hardly. Enil Kumar Jane, professor of the Department of Computer Science and Engineering at the University of Michigan (USA), in his book Handbook of Fingerprint Recognition argues that using the body of a dead person for biometric authentication is impossible.
The fact is that the capacitive sensor of the biometric fingerprint scanner on the smartphone detects the presence of electric current in the skin - if there is none, then the smartphone will not recognize the fingerprint and will not unlock. Accordingly, artificial fingers made of any material, be it silicone, rubber or plastic, are simply useless in this matter. By the way, unlocking the iPhone X by showing him the face of a dead man will not work either - the scanner monitors that the person moves his eyes.
Did you know about this?