> For the complete documentation index, see [llms.txt](https://help.cerby.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.cerby.com/getting-started/concepts/credential-management/passkeys.md).

# Passkeys

With the Cerby mobile app or browser extension, you can log in to your accounts using passkeys; no passwords are required.

This feature enhances your security by using your device's biometric or security key verification to authenticate, instead of storing and entering a password. This makes it nearly impossible for attackers to access your credentials.

Passkeys are supported only for a subset of apps; they are listed in [Passkeys.directory](https://passkeys.directory/). Even when an app is listed there, it must also have passkeys fully enabled on its own end for Cerby to support it end-to-end. For example, Amazon and X (Twitter) are fully supported, but TikTok isn't yet, since TikTok hasn't enabled its global passkeys option on web. If you have any issues with a supported app, contact the Cerby Support team at <support@cerby.com>.

***

## Supported features

The following are the supported features of passkeys with the Cerby mobile app:

* Add passkeys to existing accounts in your workspace.
* (For iOS only) Create a new account in your Cerby workspace while also creating a passkey for an app.
* Log in to your accounts using passkeys with the Cerby mobile app on your mobile device or combined with another device.
* Update your passkeys whenever necessary.

The following are the supported features of passkeys with the Cerby browser extension:

* Add a passkey to an existing account in your workspace when you register a passkey on an app.
* Log in to your accounts using a saved passkey.
* Replace an existing passkey when you register a new one for the same account.
* Delete a passkey from an account.

***

## Supported versions

The following are the supported operating systems (OS) and Cerby mobile app versions for using passkeys with the Cerby mobile app:

* **Cerby mobile app:** From version 1.0.X onwards
* **iOS:** From version 17 onwards
* **Android:** From version 14 onwards

{% hint style="info" %}
**NOTE:** To read a more detailed list of passkey support on different devices, read the article [Can I use passkeys on my devices?](https://www.passkeys.io/compatible-devices)
{% endhint %}

Passkeys with the Cerby browser extension are supported on Chrome, Edge, and Safari.

***

## Considerations

Note the following important considerations for using passkeys in Cerby:

* Cross-device login is supported for devices that do not have passkey support, such as laptops or desktops, by using the Cerby mobile app on your mobile device. ​**NOTE:** The Bluetooth function could be required for this login type.
* You must enable biometric verification using the Cerby mobile app. Passkeys require user verification, which is confirmed through the biometric hardware on your mobile device. ​**NOTE:** To learn how to enable the biometric login in your Cerby mobile app, read the article [Turn on the Biometrics Login feature](https://help.cerby.com/cerby-mobile-app/app-customization/turn-on-the-biometrics-login-feature).
* Currently, Android does not support account creation when creating a new passkey for an app.
* The Cerby web app doesn't support passkeys.

***

## Related articles

The following articles contain more information about passkeys:

**Cerby mobile app:**

* [Create a passkey for an account using the Cerby mobile app](https://help.cerby.com/cerby-mobile-app/accounts/protecting-your-accounts/passkeys/create-a-passkey-for-an-account)
* [Log in to an account with a passkey with the Cerby mobile app](https://help.cerby.com/cerby-mobile-app/accounts/protecting-your-accounts/passkeys/log-in-to-an-account-with-a-passkey)
* [Update the passkey of an account using the Cerby mobile app](https://help.cerby.com/cerby-mobile-app/accounts/protecting-your-accounts/passkeys/update-the-passkey-of-an-account)
* [Delete a passkey from an account in the Cerby mobile app](https://help.cerby.com/cerby-mobile-app/accounts/protecting-your-accounts/passkeys/delete-a-passkey-from-an-account)
* [Remove a passkey from an account](https://help.cerby.com/cerby-mobile-app/accounts/protecting-your-accounts/passkeys/remove-a-passkey-from-an-account-in-an-app)

**Cerby browser extension:**

* [Add a passkey to an account](https://help.cerby.com/cerby-browser-extension/accounts/protecting-your-accounts/passkeys/add-a-passkey-to-an-account)
* [Log in to an account with a passkey](https://help.cerby.com/cerby-browser-extension/accounts/protecting-your-accounts/passkeys/log-in-to-an-account-with-a-passkey)
* [View the passkey details of an account](https://help.cerby.com/cerby-browser-extension/accounts/protecting-your-accounts/passkeys/view-the-passkey-details-of-an-account)
* [Delete a passkey from an account](https://help.cerby.com/cerby-browser-extension/accounts/protecting-your-accounts/passkeys/delete-a-passkey-from-an-account)


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