When you enable two-factor authentication on your accounts, you’re provided with backup codes that allow you to log back in if you lose your phone. These codes are the critical backup—so securing them properly is critical. Never store them in the same place as your password or in an unsecured cloud note on your tablet. If a unauthorized person gains access to your device, they could bypass your 2FA entirely and compromise your account.

Instead, physically document them and store them in a safe place like a secure filing cabinet. Make sure the paper is kept away from humidity and other physical threats. If you’re worried about destruction, consider creating duplicates and hiding a second copy elsewhere such as with a legal guardian or in a secure offsite storage.

If you prefer digital storage, select a verified credential keeper that is encrypted end-to-end and protected with a strong master password. Avoid using cloud note apps like Google Keep unless they are multi-factor protected. Never email recovery codes to yourself or jun88 đăng nhập host them on Dropbox that can be accessed by others.

Validate your codes every few months to ensure you can still access your accounts using the codes. If you replace your devices, generate new ones. Remember, recovery codes are not replaceable in most cases—so handle them like a passport. The safety of your codes is your safety.