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A comment on Smartphones can be fooled by fake, digitally composed fingerprints. Parent comment

Re:Smartphones can be fooled by fake, digitally composed fin... by hexane360 on Saturday May 13, 2017 @05:54PM (#14333222)
You really think the gym would use a system where a large portion of fingerprints match as OP? No, we're not dealing with yes/no. We're dealing with "which fingerprint matches the given data best", not "does the given data match a given fingerprint well enough". The scanner doesn't return "is this person OP", it returns "which person is this".
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Re:Smartphones can be fooled by fake, digitally composed fin... by Godel_unicode on Saturday May 13, 2017 @09:59PM (#14333853)
As someone who has done red teaming of systems like this and found exactly that type of bug? Yes. Yes I do.

I'm sorry, but you are simply fundamentally misunderstanding how this works.

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