## Documentation Index Access the complete documentation index at: https://www.zoho.com/en-fr/books/kb/llms.txt Use this file to discover all available documentation pages before proceeding. [Back](./) # How do I enable Multi-Factor Authentication for my Zoho Books account? Zoho supports Single Sign-On (SSO), which means you can access any service with the same sign-in page and credentials. Additionally, it supports Multi-factor Authentication to add a layer of security while signing in to your accounts. The different MFA modes that are currently supported are: 1. Zoho OneAuth 2. OTP Authenticator 3. Security Key 4. Passkey To enable MFA for your Zoho account: * Go to [accounts.zoho.com](http://accounts.zoho.com) and log in with your registered email address and password. * Click **Multi-Factor Authentication** on the left sidebar to view the different MFA modes. ![MFA Modes](/books/kb/images/general/mfa-modes.png) * Select the MFA mode you prefer and click **Set up Now**. * Follow the instructions listed for each MFA mode to enable it for your Zoho account. Once you’ve set up MFA, future sign-ins will require you to verify your identity to prevent unauthorized access to your account.