skills.rest
do-zoo
do-zooCOMMUNITY
Explore all skills by this author →
WebsiteGitHub

two-factor-authentication-best-practices

Implement two-factor authentication with TOTP, OTP delivery, and backup codes.

Updated Aug 27, 2026
Search Tags:#otp#mfa#totp#two-factor-authentication#backup-codes#authentication-flow
One-click install
npx skills add https://github.com/do-zoo/match-screening-cisc --skill two-factor-authentication-best-practices-do-zoo
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: two-factor-authentication-best-practices
Source: https://github.com/do-zoo/match-screening-cisc/tree/main/.agents/skills/two-factor-authentication-best-practices
Command: npx skills add https://github.com/do-zoo/match-screening-cisc --skill two-factor-authentication-best-practices-do-zoo

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Ensures secure user authentication by implementing robust two-factor authentication to protect accounts from credential theft and unauthorized access.

Core Features & Use Cases

  • TOTP setup for authenticator apps with QR codes
  • One-time passcodes via email or SMS for backup when the primary method is unavailable
  • Generation and management of backup codes for recovery
  • Guided sign-in flow to prompt for a second factor when required
  • Trusted devices handling to improve user experience while maintaining security

Quick Start

Add the twoFactor plugin to your server config and enable client-side 2FA integration to require a second factor at 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 TOTP two-factor authentication in my app?▼

To implement TOTP two-factor authentication, add the Better Auth twoFactor plugin to your server config and enable client-side integration to require a second factor at sign-in.

What is the best way to handle backup codes for two-factor authentication?▼

The best way to handle backup codes for two-factor authentication is to generate and manage recovery codes through the twoFactor plugin, allowing users to regain access if their primary method is unavailable.

Can I use email or SMS for OTP delivery during MFA sign-in?▼

Yes, you can use email or SMS for OTP delivery as a backup method for two-factor authentication when the primary authentication method is unavailable.

How does trusted device handling work in a two-factor authentication flow?▼

Trusted device handling in a two-factor authentication flow improves user experience by allowing users to bypass the second factor on recognized devices while maintaining overall account security.

Does two-factor authentication work with onboarding and login workflows?▼

Yes, two-factor authentication works with onboarding and login workflows by applying the twoFactor plugin to prompt for a second factor during sign-in, onboarding, and trusted-device workflows.

What are the limitations of using TOTP for two-factor authentication?▼

A limitation of using TOTP for two-factor authentication is that users can lose access to their authenticator app, which requires configuring backup OTP delivery via email or SMS and generating backup codes.

Related Skills

Explore More Software Engineering Skills→
vcnttttvcntttt
1

better-auth-best-practices

Configure Better Auth in TypeScript apps with adapters, plugins, and CLI migrations.

Community
Intermediate
Mte90Mte90
51

Next.js Authentication

Implement HttpOnly Cookie token storage and middleware route protection in Next.js applications.

Community
Intermediate
christopherlouetchristopherlouet
5

dev-auth

Configure secure web authentication with OAuth, sessions, and 2FA.

Community
Advanced
engineers-hub-ltd-in-house-projectengineers-hub-ltd-in-house-project

mfa

Implement TOTP, WebAuthn/Passkey, and recovery code MFA flows.

Official
Advanced