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two-factor-authentication-best-practices

Configure Better Auth's twoFactor plugin for TOTP, OTP, and backup codes.

4|Updated Mar 19, 2026
Search Tags:#security#otp#mfa#totp#two-factor-authentication#backup-codes#authentication-flow
One-click install
npx skills add https://github.com/Tresillo2017/zephyron --skill two-factor-authentication-best-practices-tresillo2017
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: two-factor-authentication-best-practices
Source: https://github.com/Tresillo2017/zephyron/tree/main/.agents/skills/two-factor-authentication-best-practices
Command: npx skills add https://github.com/Tresillo2017/zephyron --skill two-factor-authentication-best-practices-tresillo2017

SYSTEM DOCUMENTATION & REQUIREMENTS

## What problem does it solve? Configure 2FA best practices using Better Auth's twoFactor plugin to secure user sign-in with TOTP, OTP, and backup codes, including setup and management.

## Core Features & Use Cases

  • TOTP setup for authenticator apps
  • OTP delivery via email/SMS and verification
  • Backup codes generation, storage, and recovery
  • Trusted devices handling and secure sign-in flow
  • Server-side and client-side integration guidance

### Quick Start Configure the twoFactor plugin with an issuer, wire up twoFactorClient on the client, and enable TOTP/OTP delivery with backup codes to secure sign-in.

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 TOTP and backup codes?▼

Configure the twoFactor plugin with an issuer on your server, wire up the twoFactorClient on the client side, and enable TOTP and backup codes to secure user sign-in flows.

What is the best way to set up backup codes for an MFA recovery flow?▼

Use the Better Auth twoFactor plugin to generate, store, and verify backup codes, providing a secure recovery path for trusted devices during the MFA sign-in flow.

Does Better Auth support OTP delivery via email and SMS for two-factor authentication?▼

Yes, the Better Auth twoFactor plugin supports OTP delivery via email and SMS, enabling secure verification and sign-in workflows for both web and mobile applications.

How do I configure server-side middleware for a secure two-factor authentication workflow?▼

Configure the twoFactor plugin with a specified issuer and apply server-side middleware to validate TOTP and OTP verification requests during the authentication flow.

Can I use the Better Auth twoFactor plugin to manage trusted devices for MFA?▼

Yes, the Better Auth twoFactor plugin handles trusted devices by managing secure sign-in flows, TOTP verification, and backup code recovery within your web or mobile application.

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