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My guess is that the screen protector is blocking the ultrasonics so when you 'register' a finger you're actually registering the screen protector. This means
by lhopki01 7y ago
My guess is that the screen protector is blocking the ultrasonics so when you 'register' a finger you're actually registering the screen protector. This means that any finger will work as each time it see the same screen protector.
The fix will just have to be building a profile of what screen protectors look like to the sensor and rejecting registrations that look like them with a helpful message about screen protectors.
- hinkley 7y agoOr model what fingerprints look like, which was their job after all. What you do for people with disfigurements and birth defects, I couldn’t say. But you should be able to flag the data as sketchy. Is this an example of AI gone bad, or something else?
- lhopki01 7y agoI doubt there's any AI involved in this. I think they've never bothered to really consider what a fingerprint actually looks like. This is fairly evidenced by how every single phone fingerprint read seems to readily accept many other body parts and I suspect also things that have similar conductivities to human skin.
- tracker1 7y agoOne place I worked at, the fingerprint reader for security was horrible... you had to get your finger in the exact same position. Sometimes it'd work in the morning, but not in the afternoon after lunch. I thought it was funny how my phone could figure it out, but the building system couldn't... of course the building only took two sample scans, while my phone will take 6 or so.
- ineedasername 7y agoMaybe the phones are only "figuring it out" by having very loose acceptance criteria for the correct pattern. For all we know, the 6 scans could be mostly marketing fluff to give the appearance of robust matching.
- anoncake 7y agoWhy should they make sure you only enroll fingerprints? It's not like that happened by accident.
- dotancohen 7y agoI just got one of the cheapest phones that Samsung makes, the A50. There is an aftermarket screen protector on the screen. I was able to register my nose to unlock the phone via the "fingerprint" sensor. Interestingly enough, it will reliably unlock with my nose, but not with either of my daughters' noses.
- misterprime 7y agoEnjoyable story. Please add to HBO's Silicon Valley script =)
- fitzroy 7y agoThree factors of security: Something you have. Something you are. Something you nose.
- l33tman 7y agoYou, sir, made me laugh!
- nickpeterson 7y agoDoes it pass the sniff test?
- ahbyb 7y agoI am not going to say what part of my body I managed to add as a registered fingerprint, but I'll give you a hint: whether unlocking worked or not depended on my level of arousal. (I don't know if this is being downvoted for being crude or because of lack of proof. ;P)
- snazz 7y agoThis is also possible with Touch ID on iOS devices—one of my friends enrolled his nose and five toes. You can put multiple fingers or toes in one “finger” slot if you lift and set down different digits instead of the same one, albeit less accurately.
- 7y ago
- ogre_codes 7y agoIt's not clear from the article if she had her prints registered then put the protector on or if she put the protector on first. If the former, then it's particularly heinous because people could easily replicate it. If it's the latter then people could just avoid screen protectors (Which shouldn't really be needed regardless).
- withinrafael 7y agoThis was reproduced with the protector added only after registration. Yikes. https://twitter.com/Sta_Light_/status/1184475413252210688 https://twitter.com/Sta_Light_/status/1184475413252210688
- snarf21 7y agoRight, this is the issue. They should be able to detect that a protector doesn't give a fingerprint with enough variance to be real.