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Comment by intended | Hacker News Reader

Wait - so i could just "blast" a suitably depth adjusted copy of a face scan on a white page and get the iphone to unlock?

Basically use a surreptitious infrared camera, copy the face of a person, then project it onto a screen and I would mostly be good to go?

Alternatively, if I just plastered infrared dots on someones face, face recognition would cease to work? So 2 Iphone X could be used to interfere with each other?

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LOL... that sounds about 10x harder to do than lift a fingerprint; the level of increased security Apple is claiming.

Actually on second thought I'm not sure it'll work. Your infrared ink dots will interfere with the projected infrared dots.

I assume the depth is measured using the two cameras and the dot projection. So you couldn't use a 2D copy that was depth adjusted (if that was what you were suggesting).

I also assume the dots are tracked to identify, so static dots wouldn't be considered, although it could cause problems.

I could see how using 2 phones could cause problems, perhaps they need to strobe them to avoid clashes.

"Just"

Fine. Just is hyperbole. But I suppose I could just interfere with logging in if I had 2 iPhone X and pointed both at a persons face.

I'm guessing The 2 sets of dots would overlap and confuse.

Actually probably not. At least not fatally. You can apparently use two Kinects simultaneously with no serious issues.

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