Even the fancy new ultrasonic fingerprint sensor on the Samsung Galaxy S10 isn't spoof-proof.
The redditor said that the Galaxy S10's ultrasonic fingerprint sensor needs capacitive input, which means he needed to press the plastic 3D-printed version of his fingerprint onto the fingerprint sensor itself with a part of his hand, like his knuckle or fingertip. Simply placing the plastic piece onto the Galaxy S10's fingerprint sensor doesn't work.said:"I've had copies of keys made for doors and they unlocked the lock too.
The redditor said that he could obtain a fingerprint from any phone, even if it was stolen, as the owner's fingerprints are likely all over the phone and could be photographed to be 3D printed. Given how easy it is to spoof fingerprint sensors, the redditor's discovery poses a worrying prospect. Anyone with a 3D printer and a little know-how could unlock a phone. Even sensitive apps that use fingerprints to unlock can be spoofed, like a banking app.Indeed, the redditor said:"I could likely go from phone stolen to working 3d print in 10 minutes or less.
At the end of the day, the redditor said, he did this as an experiment and to highlight that fingerprint sensors aren't a safe method to lock your phone. Older types of fingerprint sensors have also been hacked before with
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