---
title: Using Authentication Key (FIDO Key) for MFA
slug: singleconnect-reference-guide-3-3-0/using-authentication-key-fido-key-for-mfa
description: Learn how to use the FIDO Key feature on the Single Connect Portal with this informative document. Discover how to register and remove your FIDO Key, and ensure maximum security with a valid certificate.
docTags: 
createdAt: 2023-04-26T09:26:20.000Z
---

This feature is only applicable to the Single Connect Portal login, and it works in conjunction with the token method. For a user, both the FIDO Key and the MFA Token work with FIDO Key priority. The FIDO Key is activated separately for each user. If the FIDO Key is not defined for other users in a group containing a user with a FIDO Key and MFA is active for that group, other users will be asked for tokens.


In order for this integration to be secure and stable, please make sure it is accessed with a valid certificate.

To register a FIDO Key:

1. Log in to the Single Connect Web GUI.
2. Navigate to A**dministration > User Accounts > Account Settings**.
3. Click the **Register FIDO Key **button.
4. Insert Enter the FIDO Key into the computer when prompted.
5. Registration **Successful.**





![](https://api.archbee.com/api/optimize/g9cApVza9NIhSh0pjZYtA/1BK679iKy20nLdeo-SV6V_image.png "Register FIDO Key")

The previously registered key can be removed by clicking the Remove FIDO Key button under Account Settings.