SD-199 · Account hardening guide

Passkey backup guide

Plain-English guidance for passkey safety, backup devices, lost-device recovery, and the safest setup path for Space Duck accounts.

Recommended path

Enroll more than one trusted device

A single passkey is better than none, but two trusted devices is the safer default. Keep one everyday device and one backup device enrolled before you need recovery.

1. Primary device

Your main phone or laptop for daily sign-in.

2. Backup device

A second trusted phone, tablet, or hardware-backed platform.

3. Verified contacts

Keep email and phone current so account recovery does not depend on guesswork.

Lost-device recovery
Still have a backup device?

Use it immediately, then rotate trust on the lost device.

No backup device?

Use identity proofing and contact verification to restore trust safely.

Do not wait

After recovery, enroll a replacement backup passkey the same day.