A backup device plan for exchange passkeys and authenticators in Kenya

Switching from SMS to a passkey or authenticator app is one of the best security steps an exchange user can take. The catch is that stronger methods often tie your login to a specific device. If that phone is stolen on a matatu or dropped in water, you may face a long recovery process with identity checks before you can reach your Binance, OKX, Bybit or Bitget account again. A little planning makes that far less painful. This guide covers how to add a second device where possible, how to store backup keys properly and how to rehearse recovery before you actually need it.

Register a second device

Where the platform allows more than one passkey, add a second one on another device you control, such as a tablet or an older phone kept at home. Check the official help pages to see how passkeys are listed and removed. Label each one clearly in the security settings, so you can tell which device it belongs to and remove the right one if a device is lost.

Store authenticator backups offline

When you set up an authenticator app, the platform usually shows a backup key or code. Write it on paper and keep it somewhere secure at home, not as a photo or a note on the same phone. Some authenticator apps offer encrypted cloud backup; if you use it, protect that account with a strong password and its own second factor.

Rehearse recovery once

Choose a quiet day and walk through what you would do if your main phone disappeared. Check you can log in from the second device, or restore the authenticator from your backup key on a spare phone. If any step fails, fix it now. This rehearsal takes less than an hour and shows you exactly where the gaps are.

When a device is really lost

If a phone with your passkey or authenticator is lost, log in from your backup device and remove the lost device from trusted lists straight away. Change your password and review withdrawal addresses and API keys. If you cannot get in, start recovery only from the official app or website, and ignore anyone online who offers to unlock accounts for a fee.

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Scenario checkpoint

• Register a second passkey on another device you control where the platform allows it
• Label each passkey in security settings with the device it belongs to
• Write authenticator backup keys on paper and keep them away from the phone
• Rehearse logging in from your backup device before you ever need to
• Remove a lost device from trusted lists as soon as you regain access