two-factor-authentication-best-practices

Configure two-factor authentication in Better Auth by adding the twoFactor() plugin and running database migrations. This enables TOTP authenticator setup, OTP delivery, backup codes, and trusted device management for secure sign-in flows.

Deliver OTP codes for 2FA via email or SMS using the Better Auth plugin. This approach adds a secondary verification layer to password authentication and integrates directly with the configured sign-in flow.

Yes, Better Auth supports TOTP authenticator apps for two-factor authentication. The plugin guides TOTP setup, allowing users to verify accounts using Time-based One-Time Passwords from standard authenticator applications.

Generate and manage backup codes for account recovery using the Better Auth twoFactor() plugin. It provides guidance on creating and using backup codes so users can regain access when locked out of their primary 2FA method.

Key security considerations for 2FA sign-in flows include session management, rate limiting to prevent brute-force attacks, and encryption at rest. The Better Auth plugin configuration addresses these aspects to protect user accounts.

Yes, Better Auth 2FA supports trusted device configuration for seamless sign-in. The plugin explains how to manage trusted devices, allowing users to bypass repeated 2FA prompts on recognized hardware while maintaining account security.