Windows Hello is Microsoft's attempt to rethink the password, and it could be an important step for securing the modern computer. If you've ever heard of biometric authentication, then you'll be familiar with how Windows Hello works.
The system uses your eye, fingerprint or face to identify you. Now, I've always been wary of facial recognition software because of how easy it could be for a hacker to simply hold up a picture of your face to hack your PC.
Microsoft claims that Windows Hello uses complex infrared tracking to verify that logging in through facial recognition is, in fact, secure.
And after the amount of money the company dumped into motion-tracking Kinect technology, I'm inclined to believe its claim.