While not yet present in the technical preview of Windows 10, a new feature called Windows Hello will bring biometric security to Windows 10 in a native format, essentially eliminating the need for passwords. Instead, you'll be able to log into your Windows device using your face, iris, or fingerprint.
Microsoft describes Windows Hello as a technology where your devices recognize you and then let you into the system.
Along with Windows Hello, Microsoft is revising and enhancing its Microsoft Passport system to allow users to securely sign in to apps and websites without having to use a password. For instance, it will work with your Microsoft Account or Azure Active Directory Web services. Let's take a closer look.