Because fingerprint readers on today’s smartphones are relatively small, they typically scan different parts of a fingerprint to ensure that just one press of a finger or thumb will successfully activate the sensor.
Only one of these partial scans must be a match for the sensor to unlock a phone, and since many users register multiple fingerprints on a device, there are often dozens of different partial prints registered on a phone.
“There’s a much greater chance of falsely matching a partial print than a full one, and most devices rely only on partials for identification,” said NYU’s Nasir Memon, one of the authors of the study, which is published in IEEE Transactions on Information Forensics & Security… More at The Telegraph.
Good to know I guess, but there are still many advantages to such technology if used with facial recognition and other future security measures.
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