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Passkeys - Log in and authorise securely without your phone

Written by Anna Dziurosz

What are passkeys?

Passkeys let you log in and authorise actions in Moss using your fingerprint, face recognition, or device PIN - instead of SMS codes or the Moss mobile app. They use the security features already built into your device, so there's nothing extra to install.

Passkeys cannot be phished, reused, or guessed. Your biometric data stays on your device and is never shared with Moss.

How do passkeys work?

When you use a passkey, you verify your identity using the security features built into your device:

Method

Where it works

Fingerprint (Touch ID)

Mac with Touch ID, supported Windows laptops

Face recognition (Face ID)

iPhone, iPad (when using cross-device QR code)

Device PIN or password

Windows Hello PIN, macOS password, phone screen lock

USB security key (e.g. YubiKey)

Any computer with a USB port

Your biometric data never leaves your device — Moss only receives a cryptographic confirmation that you verified successfully.

Why use passkeys?

  • Faster - authorise actions instantly on your computer, no need to pick up your phone

  • More reliable - no more waiting for SMS codes or dealing with delivery failures

  • More secure - passkeys are phishing-resistant and tied to your device

  • Works everywhere - synced passkeys (via iCloud Keychain, Google Password Manager, or 1Password) work across your devices automatically

Requirements

Supported devices and browsers:

Platform

Browser

Authentication method

macOS (Ventura+)

Safari, Chrome, Edge

Touch ID or device passcode

Windows 10+

Chrome, Edge

Windows Hello (fingerprint, face, or PIN)

Note: Passkeys on Moss are currently available on web only.

How to set up a passkey

  1. Go to 'Settings' → 'Login & security'

  2. Click 'Set up passkey'

  3. Verify your identity (this is a one-time security step using SMS + email or the Moss mobile app)

  4. Your browser will ask you to create a passkey - confirm with your fingerprint, face, or PIN

  5. Give your passkey a name (e.g. "Work MacBook", "Office PC")

You can register up to 3 passkeys on different devices. We recommend setting up at least two - for example, your work laptop and a personal device - so you always have a backup.

Important: Only set up passkeys on devices you personally own and control.

Where are passkeys stored?

Passkeys can be stored in three ways:

  • Synced - saved in a password manager like iCloud Keychain, Google Password Manager, or 1Password. These work automatically on any device where you're signed into that manager.

  • Device-only - stored directly on a single device (e.g. via Windows Hello). These stay on that device only, but you can still use them on another device by scanning a QR code.

  • External USB key - stored on a hardware security key (e.g. YubiKey). Plug it into your computer's USB port and tap it when prompted. USB keys work on any computer without needing a password manager or syncing. They're especially useful as a backup option.

How to log in with a passkey

  1. Go to the Moss login page

  2. Select 'Log in with passkey'

  3. Confirm with your fingerprint, face, or PIN

That's it - no SMS code or mobile app needed.

How to authorise actions with a passkey

When Moss requires verification for sensitive actions (e.g. approving a payment, granting admin access):

  1. Select 'Authorise with passkey' when prompted

  2. Confirm with your fingerprint, face, or PIN

  3. Done - the action is confirmed immediately on your screen

Managing your passkeys

Go to 'Settings' → 'Login & security' to view and manage your passkeys. For each passkey you can see:

  • Name

  • Date created

  • Last used

You can rename a passkey (e.g. after changing laptops) or remove a passkey you no longer use. Removing a passkey requires verification for security.

Tip: Removing a passkey from Moss does not delete it from your password manager or device. You may want to remove it from both places.

Preferred 2FA method

When you activate passkeys, they automatically become your preferred method for approving sensitive actions. If you later activate the Moss mobile app, the mobile app will become your preferred method instead.

You can always change your preferred 2FA method in Profile > Security > Preferred 2FA method. Choose between:

  • Passkeys - approve with fingerprint, face, or PIN on your computer

  • Moss app - approve on your phone

What about other sign-in methods?

Method

Status

Moss mobile app

Continues to work as before. If you have both passkeys and the mobile app, Moss will use your preferred method.

SMS OTP

Being phased out. We recommend switching to passkeys or the Moss mobile app.

TOTP (Google Authenticator)

Being phased out for new users. Existing users will be migrated over time.

What if I lose my device?

  • If you have another passkey registered - log in with your backup passkey on another device

  • If you have the Moss mobile app - log in using mobile app authorisation

  • If you have synced passkeys (iCloud Keychain, Google Password Manager, 1Password) - your passkey is available on any device where you're signed into that manager

  • If you can't access any method - contact your Moss admin or our support team to help restore access


Troubleshooting

Issue

What to do

Passkey not showing during login

Make sure your browser and OS meet the requirements above. Try updating your browser.

Setup fails

Check that screen lock (PIN, fingerprint, or face) is enabled on your device. Passkeys require a device lock to be active.

Wrong passkey is offered by browser

If you recently deleted a passkey and added a new one, your browser may cache the old credential. Cancel the first prompt - your browser should then show your other available passkeys.

Browser extension conflict

Some browser extensions may interfere with passkey prompts. Try disabling extensions temporarily.

Bluetooth error on cross-device auth

If using a phone to authenticate on another device via QR code, make sure Bluetooth is enabled on both devices.

1-Password troubleshooting

Some users experience problems when trying to save or use passkeys with 1Password, because multiple passkey providers on the device compete for precedence. This is a known issue for 1Password and unfortunately not something Moss can control.

  • If 1Password interferes with your passkey setup, you may need to check if your 1Password browser extension is properly configured

  • On macOS: if passkey saving fails, try going to 'System Settings' → 'General' → 'AutoFill & Passwords' and adjusting which provider handles passkeys

FAQ

How many passkeys can I have?

Up to 3 passkeys per Moss account.

Is my fingerprint or face data sent to Moss?

No. Your biometric data stays on your device and is never transmitted to Moss. We only receive a cryptographic confirmation that you verified successfully.

Can I use passkeys and the mobile app at the same time?

Yes. You can have both set up. Moss will use your preferred method.

Does my organisation need to enable passkeys?

No. Passkeys are available to all users. No admin action is required.

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