---
title: AAGUID restrictions and AMR matching for Access independent MFA
description: Restrict which WebAuthn authenticators users can enroll and allow users to skip redundant MFA prompts when they have already performed MFA using their IdP.
image: https://developers.cloudflare.com/changelog-preview.png
---

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## AAGUID restrictions and AMR matching for Access independent MFA

Apr 23, 2026 

[ Access ](https://developers.cloudflare.com/cloudflare-one/access-controls/policies/) 

[Independent MFA](https://developers.cloudflare.com/cloudflare-one/access-controls/access-settings/independent-mfa/) in Cloudflare Access now supports two additional organization-level controls:

* **[Restrict authenticators by AAGUID](https://developers.cloudflare.com/cloudflare-one/access-controls/access-settings/independent-mfa/#restrict-authenticators-by-aaguid)** — Limit enrollment to a specific set of WebAuthn authenticators using their [AAGUID ↗](https://fidoalliance.org/specs/fido-v2.0-id-20180227/fido-registry-v2.0-id-20180227.html#authenticator-attestation-guid). This is useful for organizations that require FIPS-validated security keys or company-issued hardware. AAGUIDs are managed through a new [List](https://developers.cloudflare.com/cloudflare-one/reusable-components/lists/) type.
* **[AMR matching](https://developers.cloudflare.com/cloudflare-one/access-controls/access-settings/independent-mfa/#use-identity-provider-mfa)** — Skip the independent MFA prompt when the identity provider has already performed an equivalent MFA. Access reads the `amr` claim defined in [RFC 8176 ↗](https://datatracker.ietf.org/doc/html/rfc8176) and matches supported values such as `hwk`, `otp`, and `fpt` to the authenticator types allowed on the application or policy. This prevents users from having to complete MFA twice when their identity provider already enforces it.

To get started, refer to [Independent MFA](https://developers.cloudflare.com/cloudflare-one/access-controls/access-settings/independent-mfa/).

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