Watching and learning
Hello isn't a privacy risk, per se, but rather a different way of interacting with your PC, with the new idea that it's actually watching you--or rather, watching for you. If any of this worries you, you can turn off Hello. The easiest way is to go into the Start menu, enter the Settings, then type in "Hello" into the search box. You'll probably be directed to a screen where you can set up your Windows login information, including Hello.
Microsoft has already weathered a period where gamers worried that the Xbox One's Kinect camera would be snapping pictures of them in their underwear. Now it's the PC's turn. When it comes to privacy, Windows Hello and Cortana just scratch the surface of the information you're providing to Microsoft. Check out the rest of the privacy statement for more.
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