When drinking glass of water, that glass will have your fingerprints all over it. And that, apparently, is enough to crack your smartphone.
Tencent Security’s X-Lab team demonstrated this at a hacking event in Shanghai by inviting members of the audience to touch a glass. Then the team’s leader, Chen Yu, took out his phone, snapped a photo of the fingerprints, and ran it through their new app to extract accurate data. That was used to create a physical version of the fingerprints in just 20 minutes.
The “cloned” fingerprints were able to fool three smartphones and two attendance machines equipped with fingerprint scanners.