What is a 2FA Secret?

What is a 2FA secret?

A 2FA (Two-Factor Authentication) secret is a unique alphanumeric code that is shared as a QR code or a secret key, generated by an online service (such as email accounts, social media platforms, cloud services, or financial apps) when you enable two-step verification for your account.

How does Zoho OneAuth use the 2FA secret?

In the Zoho OneAuth app, you can add your online 2FA (non-Zoho) accounts by scanning a QR code, uploading a QR code, or entering the secret key manually. This securely links your online 2FA account with OneAuth.

Once linked, OneAuth uses the 2FA secret to generate a time-based one-time password (TOTP). These codes are usually 6 digits in length, but some services may use 7 or 8 digits, all of which are supported by OneAuth. These codes refresh automatically at regular intervals and are required when you sign in to your account.

To learn more, refer to Add 2FA accounts to OneAuth.

What is a passphrase, and why is it needed?

A passphrase is similar to a password that adds an extra layer of security to your 2FA secrets in Zoho OneAuth. It is required to back up your 2FA accounts to the Zoho Cloud and to restore them on a new or existing device.

Your passphrase encrypts the 2FA secrets before they are securely stored in the Zoho cloud. For enhanced security, Zoho does not store your passphrase, which means it cannot be accessed or retrieved by us.

Make sure you remember your passphrase. It is required to restore your previously backed-up 2FA accounts. To learn more, refer to the Backup and sync 2FA accounts doc.

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