two-factor-authentication-best-practices

Implement two-factor authentication with Better Auth's twoFactor plugin.

Updated Mar 31, 2026
One-click install
npx skills add https://github.com/TKlerx/webapp-template --skill two-factor-authentication-best-practices-tklerx
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: two-factor-authentication-best-practices
Source: https://github.com/TKlerx/webapp-template/tree/main/.agents/skills/two-factor-authentication-best-practices
Command: npx skills add https://github.com/TKlerx/webapp-template --skill two-factor-authentication-best-practices-tklerx

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires @better-auth/cli, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill addresses the need for robust multi-factor authentication (MFA) by configuring and managing 2FA using Better Auth's twoFactor plugin, ensuring secure user sign-ins and data protection.

Core Features & Use Cases

  • TOTP Setup: Configure TOTP authenticator apps and send one-time passwords (OTP) via email/SMS.
  • Backup Codes Management: Create and manage backup codes for recovery.
  • Trusted Devices Handling: Manage trusted devices and their trust duration.
  • 2FA Sign-In Flow: Implement 2FA sign-in flows for secure user access.
  • Security Considerations: Includes session management, rate limiting, and encryption at rest.

Quick Start

Enable 2FA for a user by running authClient.twoFactor.enable({ password }).

Frequently Asked Questions about two-factor-authentication-best-practices

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I implement two-factor authentication using Better Auth?

You can implement two-factor authentication using Better Auth by enabling the twoFactor plugin, which provides a secure user sign-in flow with TOTP, OTP via email/SMS, backup codes, and trusted devices management.

What's the best way to set up TOTP and backup codes for user authentication?

The best way to set up TOTP and backup codes is by configuring Better Auth's twoFactor plugin, which manages TOTP authenticator apps, sends OTP via email/SMS, and creates recovery codes for secure user authentication.

Does Better Auth support multi-factor authentication with trusted devices?

Yes, Better Auth supports multi-factor authentication with trusted devices management. The twoFactor plugin allows you to configure trust duration and manage trusted devices for secure user sign-ins.

Can I use Better Auth to send one-time passwords via email and SMS?

Yes, you can use Better Auth to send one-time passwords via email and SMS. The twoFactor plugin configures TOTP authenticator apps and delivers OTP through email or SMS for secure user access.

How do I enable 2FA for a user in a web application?

To enable 2FA for a user in a web application, run `authClient.twoFactor.enable({ password })` to initialize the twoFactor plugin, which includes session management, rate limiting, and encryption at rest.