Lost a Phone With Passkeys? How to Recover Access and Remove the Old Device

Last updated: September 7, 2026

Losing a phone that holds passkeys does not automatically mean losing every account. The recovery path depends on where the passkey was stored. A synced passkey may return when you sign in to the same credential provider on a new device. A device-bound passkey may require another registered authenticator or the website’s account-recovery process.

Quick Take

  • Secure or erase the lost phone first, then review active account sessions.
  • Use a trusted device, another passkey, a security key, or an available recovery method to regain access.
  • Remove the old passkey from the website account and, when applicable, from the credential manager where it was stored.
  • Create a replacement passkey only after you have confirmed a second recovery path.

Synced and device-bound passkeys behave differently

FIDO Alliance explains that passkeys can sync through a passkey provider to other devices signed in to the same provider account. After setting up a replacement phone, those credentials may become available again without recreating every passkey.

A passkey saved only on a physical security key or local device does not automatically move. If that device is gone, you need another registered credential or the service’s recovery process. Company-managed accounts may also follow policies set by an administrator.

What to do immediately after losing the phone

  1. Lock the device. Use the phone maker’s official find-device service. If recovery is unlikely, consider a remote erase.
  2. Review signed-in devices. From a trusted computer or second phone, remove the lost device’s active sessions from your main email, credential-provider, and password-manager accounts.
  3. Regain access with a separate method. Try another synced passkey, a second device, a hardware security key, a recovery code, or the account’s documented recovery flow.
  4. Review registered passkeys. Open each important account’s security settings and remove the credential associated with the lost device when it can be identified.
  5. Check the credential manager. Some providers distinguish between removing a passkey from the website account and deleting the stored credential from the device or password manager.

Why there is no universal “delete every passkey” button

Each passkey is registered with a relying party—the website or app you sign in to. Your credential provider stores the private credential, while the service keeps the corresponding public information. That means device security, account sessions, the service’s passkey list, and the credential manager are related but separate layers.

Google’s official instructions, for example, separate signing a lost device out from removing a passkey in the account. Microsoft also notes that locally stored Windows passkeys and passkeys registered to an account may need to be managed in different places. Follow the support page for the service and provider you actually use.

Set up the replacement device safely

  • Update the operating system and browser before restoring credentials.
  • Sign in to the same trusted credential provider and check which passkeys sync back.
  • Create new passkeys for accounts whose device-bound credentials were lost.
  • Keep at least one independent recovery option, such as a second device, separate security key, or securely stored recovery codes.
  • Verify that the lost device no longer appears in active sessions or registered passkeys.

One important safety rule

Create passkeys only on devices you own and control. Anyone who can unlock a shared device may be able to use a passkey stored there. Passkeys greatly reduce phishing and password-reuse risks, but they still depend on strong device locks and a well-maintained recovery plan.

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