two-factor-authentication-best-practices

To implement two-factor authentication with Better Auth, add the `twoFactor()` plugin to your server and client configurations. This enables MFA functionality, including TOTP setup, backup codes, and verification code delivery via email or SMS.

Yes, Better Auth's twoFactor plugin supports TOTP authenticator app configuration and generates single-use backup codes. This allows users to verify via authenticator apps and recover access safely if they lose their primary devices.

The best way to send email or SMS verification codes is by utilizing Better Auth's twoFactor plugin, which manages Email/SMS OTP delivery natively. This adds an additional security layer to your application's login process.

You manage trusted devices and their trust durations using the Better Auth twoFactor plugin. This feature allows your application to remember a device for a specified period, reducing frequent MFA prompts for returning users.

When setting up MFA, follow security best practices like strict session management, rate limiting, and encryption. The Better Auth twoFactor plugin provides configuration options to enforce these protections for secure logins.