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+---
+title: WebAuthn APIs 
+description: Enabling password-less authentication for your sites and apps
+ms.prod: w10
+ms.mktglfcycl: deploy
+ms.sitesec: library
+ms.pagetype: security, mobile
+author: aabhathipsay
+ms.author: aathipsa
+ms.localizationpriority: medium
+ms.date: 02/15/2019
+---
+# WebAuthn APIs for password-less authentication on Windows 10 
+
+
+### Passwords leave your customers vulnerable. With the new WebAuthn APIs, your sites and apps can leverage password-less authentication.
+
+Microsoft has long been a proponent to do away with passwords.
+While working towards that goal, we'd like to introduce you to the latest Windows 10 (version 1903) W3C/FIDO2 Win32 WebAuthn platform APIs!
+These APIs allow Microsoft developer partners and the developer community to leverage Windows Hello and FIDO2 security keys
+as a password-less authentication mechanism for their applications on Windows 10 devices. 
+
+#### What does this mean?
+This opens opportunities for developers or relying parties (RPs) to enable password-less authentication.
+They can now leverage [Windows Hello](https://aka.ms/whfb) or [FIDO2 Security Keys](https://docs.microsoft.com/windows/security/identity-protection/hello-for-business/microsoft-compatible-security-key)
+as a password-less multi-factor credential for authentication.  
+<br>
+Users of these sites can use any browser that supports WebAuthn Windows 10 APIs for password-less authentication
+ and will have a familiar and consistent experience on Windows 10, no matter which browser they use to get to the RPs site!
+<br> <br>
+The native Windows 10 WebAuthn APIs are currently supported by Microsoft Edge on Windows 10 1809 or later
+ and latest versions of other browsers.
+<br> <br>
+Developers of FIDO2 authentication keys should use the new Windows 10 APIs, to enable these scenarios in a consistent way for users.
+ Moreover, this enables the use of all the transports available per FIDO2 specifications - USB, NFC and BLE
+ without having to deal with the interaction and management overhead. 
+This also implies browsers or apps on Windows 10 will no longer have direct access to above transports for FIDO related messaging. 
+
+#### Where can developers learn more?
+The new Windows 10 APIs are documented on [GitHub](https://github.com/Microsoft/webauthn)
+
+