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Ilya St
November 2 13:01

Smartphones can be hacked with fingerprints left on the glass

A research team from Tencent Security X-Lab showed how to hack a smartphone using fingerprints left on a glass at Shanghai GeekPwn 2019 event
Researcher Chen Yu scanned a fingerprint left on a glass using an app on his phone, and then in half an hour recreated a physical copy of a fingerprint that can circumvent scanners of smartphones and cars.
“The hardware needed for this attack was worth more than 1,000 yuan (around US$140), and the equipment was just a smartphone and an app,” the researcher explained to The Paper.
According to the researchers, they were the first to hack an ultrasonic fingerprint sensor - one of the most common sensor types used in smartphones, along with capacitance and optical sensors.
However, recall a few weeks ago, a British woman showed how to fool ultrasonic fingerprint sensor on Samsung Galaxy S10. She bought a screen protector for US$3 and found out that she could unlock the device with an unregistered finger. As it soon turned out, her family could also unlock the phone. Samsung has already released an update to fix this problem. Also in April of this year, the user of Reddit forum under the nickname Darkshark managed to circumvent the smartphone’s protection system using a three-dimensional fingerprint model.