If accounts disappeared after an update, they can only be retrieved if they were previously backed up, and only to the same device type (iOS → iOS, Android → Android).
- Confirm backup and device type
- Authenticator backups are not cross-platform: accounts backed up on iOS cannot be restored on Android, and vice versa.
- On iOS, Authenticator uses iCloud; on Android, it uses Cloud Backup with a Microsoft personal account.
- Restore on iOS
- Ensure on the old device (if still available):
- iCloud Drive, iCloud Keychain, and iCloud Backup are enabled.
- Authenticator is listed and enabled in the Saved to iCloud list.
- On the new or reset iOS device:
- Install Authenticator.
- Sign in to each account in Authenticator to complete the restore.
- If the backup does not appear on the new iOS device, try:
- Uninstalling and reinstalling Authenticator.
- Ensuring the app is version 6.8.33 or later on the old device and that it was opened at least once before switching devices.
- Restore on Android
- Open Authenticator and select Restore from backup (or Begin recovery) before signing in.
- Sign in with the same Microsoft personal account that was used for Cloud Backup.
- If Restore from backup is not visible, remove or sign out of all accounts in Authenticator, then reopen the app and look for the restore option.
- What actually comes back
- Microsoft personal accounts:
- One-time password (OTP)–only accounts: OTP codes are restored.
- Passwordless sign-in accounts: only the account name is restored; each must be signed in again.
- Work or school accounts: only the account name is restored; each must be signed in again.
- Third-party accounts (Amazon, Facebook, Gmail, etc.): OTP codes are restored.
- If backup is unavailable
- If the backup account (iCloud or Microsoft personal account used for backup) cannot be accessed, support cannot restore Authenticator credentials.
- In that case, each account must be re-added manually using its provider’s recovery process.
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