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The main thing that worries me about it is that "what your face looks like" is superbly easy to copy. I mean, fingerprints aren't that much more secure in a te
by zyxley 10y ago
The main thing that worries me about it is that "what your face looks like" is superbly easy to copy.
I mean, fingerprints aren't that much more secure in a technical sense, but at least a lot of people don't actively post images of their fingerprints to all their social media accounts.
- fintler 10y agoI don't think the threat model for this cares about that. This is designed for home users who don't have security requirements that make them carry around OTP devices just to see their desktop. I mean, you can argue that passwords are pretty easy to copy as well -- you just need a video camera facing at the keyboard for a day or three.
- shliachtx 10y agoIf I'm not mistaken Windows Hello will only do facial recognition on a depth-sensing camera, so you would need to create a 3D model of my face to fool it.
- deleted 10y ago[deleted]
- AaronFriel 10y agoI understand it not only uses depth sensing, but also infrared, and it can distinguish between twins. That last item is the most interesting and perplexing to me.
- qq66 10y agoTwins are easily distinguishable if you know them -- I went to high school with three pairs and they were easy to tell apart. Almost everyone has some pockmark etc. on their face, and Identical twins often have these in mirror image.
- underwater 10y agoThat doesn't explain how software can distinguish them.
- gnaritas 10y agoSure it does, they have unique distinguishing features; they only look identical if you don't look too hard. Computers are good at seeing all the details.
- IshKebab 10y agoComputers aren't good at seeing subtle details in photos. At least not yet.
- qq66 10y agoNo, it doesn't, I have no idea what wizardry is involved. All I'm saying is that if you assume some magic that can distinguish Bob from Steve, then those same techniques, whatever they are, can be used to distinguish Bob from his twin Todd.
- deleted 10y ago[deleted]
- derefr 10y agoThe infrared might help: the capillaries transporting (hot) blood under the skin probably grow somewhat randomly per individual, giving everyone a slightly different pattern of heat running through their face.
- JohnTHaller 10y agoWindows Hello only works with newer cameras that support depth/3d sensing. Only a handful of laptops and a couple external cameras have this functionality. Windows Hello doesn't work with standard cameras as it would be easier to bypass.