Configure FIDO2 security key restrictions

This week is all about FIDO2 security keys. More specifically about configuring FIDO2 security key restrictions to make sure that users can only use specific FIDO2 security keys, or to prevent users from using specific FIDO2 security keys. That makes this blog post a follow up on this post about enabling password-less sign-in with security keys. In this post I’ll provide a short introduction about the FIDO2 security key AAGUID (and how to find it), followed by the steps to configure the FIDO2 security key restrictions. I’ll end this post by looking at the end-user experience. FIDO2 security key AAGUID According to the FIDO2 specification each authenticator should provide an Authenticator Attestation GUID (AAGUID) during attestation. An AAGUID is a 128-bit identifier that indicates the …

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Enable password-less sign-in with security keys

This week is all about enabling password-less sign-in with security keys on Windows 10. I know that a lot has been written about that subject already, but it’s that big that it still deserves a spot on my blog. Especially the Microsoft Intune configuration belongs on my blog. In this post I’ll show the required configurations that should be performed, by an administrator and the the user, to enable the user to use a security key as a sign-in method. My user will use a Yubikey 5 NFC security key. I’ll start this post with the authentication method policy that should be configured in Azure AD, followed by the steps for a user to register a security key. I’ll end this post by showing the …

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