Microsoft executives said that they're conscious of privacy, however, and that your laptop won't be able to store your image on it. Hello also won't send your biometric identity over the network. It will, however, unlock Passport, and that will serve as an identifying token to confirm your identity to Windows web services, to Azure Active Directory, and the sites that work with those technologies. Microsoft has joined the FIDO alliance to support replacing passwords with a growing set of financial, consumer, and other security services over time.
And if you want to, you'll be able to opt in or out of using Hello, as well.
Why this matters: Microsoft Hello is a bit of a risky move for Microsoft. Recall that gamers dismissed the Xbox Kinect sensor for three reasons: its added price, the CPU toll that it took on the console, and the perceived privacy risks. If Microsoft makes Hello user-friendly--signalling when the infrared sensor is on, for example, and doing so for just a few seconds--users may quickly warm to the idea of doing away with passwords. And, of course, it has to work--if Hello doesn't work after a user grows or shaves off his beard, that sort of news is going to travel fast.
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