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A passkey lets you sign in to Datum Cloud with your fingerprint, face, or device PIN instead of a password. You can add passkeys on several devices and remove the ones you no longer use. You do both on the Passkeys page.
If you last signed in more than 10 minutes ago, Datum asks you to confirm it’s you before it shows the Passkeys page.

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Open the Passkeys page

To open the Passkeys page, follow these steps:
  1. In the Cloud Portal, click your avatar or initials in the top right, and click Account Settings.
  2. Click the Security tab.
  3. In Sign-in Methods, next to Passkeys, click Add if you have no passkeys, or Manage if you have at least one.
  4. If Confirm it’s you opens, choose one of your sign-in methods, such as Passkey, and confirm.
The Passkeys page opens in a new browser tab. It lists each passkey with its name and the date you added it. Close the tab to return to the portal.

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Add a passkey

Each device or password manager holds one passkey for your account. To add a passkey on the device you’re using, follow these steps:
1

Start setup

On the Passkeys page, click Add passkey.
2

Register the passkey

On Set up passkey, click Register passkey, and confirm with your device.If the device already has a passkey for your account, Datum shows “You already have a passkey for this account on this device.” Use a different device instead.
3

Name the passkey

On Name your passkey, keep the suggested name or enter your own in Passkey name, and click Save.The name is optional and can be up to 200 characters. You can’t rename a passkey later, so pick a name that tells you which device it’s on, such as Work laptop.
Datum sends you an email with the subject “New passkey added to your Datum account”. To add a passkey on another device, such as your phone, sign in to the Cloud Portal on that device and repeat these steps.

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Remove a passkey

To remove a passkey, follow these steps:
  1. On the Passkeys page, click the trash icon next to the passkey.
  2. In Remove this passkey?, click Remove passkey. The passkey stops working for sign-in, and you can’t undo this.
  3. In Passkey removed, choose one of the following:
    • To sign out every other device that’s signed in to your account, click Sign out other sessions. Do this if you removed the passkey because you lost the device.
    • To stay signed in on your other devices, click Not now.
Datum sends you an email with the subject “A passkey was removed from your Datum account”. The passkey stays in your device or password manager until you delete it there.

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Keep a backup sign-in method

You can’t remove your only sign-in method. If you try, the Passkeys page shows “You can’t remove your only sign-in method. Add another method first.” To keep a way in if you lose a device, do one or both of the following:
  • Add passkeys on more than one device.
  • Link your Google or GitHub account: on the Security tab, in Sign-in Methods, click Connect next to Google or GitHub. On Linked accounts, under Available accounts to link, click the provider and sign in to that account.
If you lose access to every sign-in method, see Recover your account.

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If you get an email about a change you didn’t make

If you get a passkey email that you don’t expect, do the following:
  1. Open the Passkeys page and remove any passkey you don’t recognize.
  2. In the Cloud Portal, go to Account Settings > Active Sessions and click the trash icon (Revoke) next to any session you don’t recognize.
  3. Contact support@datum.net.

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What’s next

  • To sign in with a passkey, including one on your phone, see Sign in.
  • To get back into your account when you can’t use any of your passkeys, see Recover your account.
Last modified on October 13, 2026