> ## Documentation Index
> Fetch the complete documentation index at: https://support.locker.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Use FIDO2 security keys as Passkeys

> Replace traditional passwords and MFA with a physical security key for fast and secure Locker login

Locker supports physical security keys as a standalone login method (**Passkey**). Once set up, you can use a FIDO2 key to completely replace both the password entry step and traditional 2FA.

## Why can a security key replace both passwords and MFA?

Using a physical security key meets the highest security standards by combining:

* **Something you have:** The physical security key.
* **Something you know:** The PIN code of the security key.
* **Something you are:** A fingerprint (biometric) stored on the key.

<Info>
  When using a security key to log in, you will not need to enter a password or complete 2FA verification (if enabled).
</Info>

***

## Setting up a security key as a Passkey

<Note>
  You can create Passkeys with multiple different security keys on the same account.
</Note>

### On the Web App

<Steps>
  <Step title="Go to Security settings">
    Navigate to [id.locker.io](https://id.locker.io), log in to your account and go to the `Security` page > `Login with passkey`.

    <img src="https://mintcdn.com/locker/DGmCYM1Opanpr-4x/images/en/locker-general/security-for-locker-account/mfa-paskey-option.png?fit=max&auto=format&n=DGmCYM1Opanpr-4x&q=85&s=3d8eba7d5189b171a256e58194f51680" alt="Access Passkey settings on Web" style={{display: 'block', margin: '0 auto'}} width="1556" height="719" data-path="images/en/locker-general/security-for-locker-account/mfa-paskey-option.png" />
  </Step>

  <Step title="Connect the key">
    Plug your security key into a USB port or connect it via Bluetooth, then click the `Create Passkey` button.

    <img src="https://mintcdn.com/locker/DGmCYM1Opanpr-4x/images/en/locker-general/security-for-locker-account/mfa-passkey-create.png?fit=max&auto=format&n=DGmCYM1Opanpr-4x&q=85&s=4f05016875596c216cea87153ed161a8" alt="Start creating a Passkey" style={{display: 'block', margin: '0 auto'}} width="942" height="493" data-path="images/en/locker-general/security-for-locker-account/mfa-passkey-create.png" />
  </Step>

  <Step title="Authenticate physically">
    In the system dialog, select the **Security key** option. Enter the key's PIN or touch your fingerprint to authenticate.

    <img src="https://mintcdn.com/locker/DGmCYM1Opanpr-4x/images/en/locker-general/security-for-locker-account/mfa-passkey-securitykey.png?fit=max&auto=format&n=DGmCYM1Opanpr-4x&q=85&s=9eb5315e71970c8b566aade8f6c38173" alt="Authenticate with security key" style={{display: 'block', margin: '0 auto'}} width="1105" height="771" data-path="images/en/locker-general/security-for-locker-account/mfa-passkey-securitykey.png" />
  </Step>
</Steps>

### On mobile devices

<Steps>
  <Step title="Open settings">
    Log in to the mobile app, go to the `Menu` tab > `Settings`.

    <img src="https://mintcdn.com/locker/DGmCYM1Opanpr-4x/images/en/locker-general/security-for-locker-account/mfa-mobile-settings.png?fit=max&auto=format&n=DGmCYM1Opanpr-4x&q=85&s=ebbee80548b4b4c6c9eb78ab3c511799" alt="Passkey settings on Mobile" style={{display: 'block', margin: '0 auto'}} width="512" height="1109" data-path="images/en/locker-general/security-for-locker-account/mfa-mobile-settings.png" />
  </Step>

  <Step title="Select Passkey">
    Choose `Login with passkeys`.

    <img src="https://mintcdn.com/locker/DGmCYM1Opanpr-4x/images/en/locker-general/security-for-locker-account/mfa-mobile-passkey-option.png?fit=max&auto=format&n=DGmCYM1Opanpr-4x&q=85&s=74c623c302c2cf3f99d29104f0c2f953" alt="Select Passkey setup on Mobile" style={{display: 'block', margin: '0 auto'}} width="512" height="762" data-path="images/en/locker-general/security-for-locker-account/mfa-mobile-passkey-option.png" />
  </Step>

  <Step title="Connect and create">
    Connect the key to your phone via NFC or Bluetooth, then tap the `Create passkey` button.

    <img src="https://mintcdn.com/locker/DGmCYM1Opanpr-4x/images/en/locker-general/security-for-locker-account/mfa-mobile-passkey-create.png?fit=max&auto=format&n=DGmCYM1Opanpr-4x&q=85&s=a9519e563b29db072b834e742cad0b07" alt="Connect key to phone" style={{display: 'block', margin: '0 auto'}} width="870" height="1286" data-path="images/en/locker-general/security-for-locker-account/mfa-mobile-passkey-create.png" />
  </Step>

  <Step title="Authenticate">
    Select the **Security key** option from the popup, then enter your PIN or use your fingerprint to complete the setup.
  </Step>
</Steps>

***

Once the setup is complete, your security key will appear in the list and you can use it to log in to Locker in a single step.