Microsoft has announced support for the Web Authentication specification in the browser, which will let you log on using Windows Hello biometric hardware.It also supports PINs or external FIDO2 security keys, like the one launched by Google last week.Users can try it out now by installing Windows Insider Preview build 17723 or higher, or wait until later this year when it's available to the general public in Windows 10 version 1809.Microsoft also wrote in its launch blog post that it's “working with industry partners on lighting up the first passwordless experiences around the web.” It's also made it simple for websites to utilize backwards compatibility with external FIDO U2Fsecurity devices.The company says that its implementation provides “the most complete support for Web Authentication” to date. With Windows Hello, users will be able to authenticate without a password on any Windows 10 device through face and fingerprint recognition. A PIN number may also be used to sign into websites.