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two-factor-authentication-best-practices

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

Updated Mar 31, 2026
Search Tags:#security#Better Auth#user authentication#two-factor authentication#multi-factor authentication
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.

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