What is SSO and Why Do We Need It ?

In this video, we dive into Single Sign-On (SSO) — what it is, how it works, and why modern applications rely on it for secure and seamless authentication. You’ll learn:

The basic concept of SSO
Real-world examples of SSO in action
How SSO enhances user experience and security
The benefits for users, developers, and enterprises
When and why to implement SSO in your applications
Whether you’re a developer, IT admin, or tech enthusiast, this video will give you a clear and simple understanding of SSO and its importance in today’s digital ecosystem.

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Playlist

Are you confused about modern authentication methods? 🤯
This complete video series breaks down everything you need to know about OAuth 2.0, Auth0, and other modern auth mechanisms like SSO, SAML, OpenID Connect, JWT, and more — all with real-world code examples using NestJS, TypeORM, Redis, and Passport.js.

Whether you’re building secure apps or just trying to understand how login systems work, this playlist is your one-stop guide to mastering authentication. 🎯

### ✅ What You’ll Learn in This Series:

🔐 OAuth 2.0 Deep Dive
* Core concepts: Roles (Resource Owner, Client, Authorization Server, Resource Server)
* Grant types: Authorization Code, Client Credentials, Password, Refresh Tokens
* Securing APIs with OAuth 2.0

🔐 Auth0 Integration with NestJS
* Setting up Auth0
* Using Auth0 as an Identity Provider (IdP)
* Connecting with social logins (Google, GitHub, etc.)
* Managing roles, permissions, and user sessions with Auth0

🔐 SSO, SAML, and OpenID Connect (OIDC)
* Understand how SSO works behind the scenes
* Learn how SAML and OIDC differ and when to use each
* Implement federated identity systems with Auth0

### 📌 Other Authentication Methods Covered:
✅ Username & Password-Based Authentication
✅ Session-Based Authentication (with Redis store)
✅ Cookie-Based Authentication (HttpOnly, Secure)
✅ Token-Based Authentication (JWT)
✅ 2FA (Two-Factor Authentication)
✅ Biometric Authentication (Touch ID, Face ID – concepts & tools)

### 💡 Topics Covered in Detail:
* What is authentication & why it matters in secure apps
* OAuth 2.0 vs OpenID Connect (OIDC)
* Difference between SSO, SAML, and Token-Based Auth
* How Auth0 simplifies authentication and authorization
* Real-world implementation examples using NestJS
* Passport strategies for different auth flows
* Security best practices (CSRF, XSS, Token expiry, Refresh tokens)

🚀 Perfect for:
Developers 🧑‍💻 | Backend Engineers 🔧 | DevSecOps 🔒 | Identity Architects 🧠
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👉 #OAuth2 #Auth0 #OIDC #SAML #SSO #JWT #NestJS #CyberSecurity #IdentityManagement #Authentication #PassportJS #AccessControl