Azure app authentication & API authentication | HLD:42 | MAANG | System Design Interview

🔑 Authentication vs Authorization Explained | Single Sign-On (SSO), Identity & Access Management In this video, we explain the difference between authentication and authorization in simple terms and dive deep into how Single Sign-On (SSO) works. These concepts are the foundation of cybersecurity, identity management, and access control in modern applications. We’ll cover: ✅ What is Authentication? (user identity verification) ✅ What is Authorization? (permissions & access control) ✅ Authentication vs Authorization with examples ✅ How Single Sign-On (SSO) works in real-world systems ✅ Benefits of SSO in enterprise security ✅ Related terminologies: OAuth, SAML, OpenID Connect, Identity Provider (IdP), Access Tokens By the end of this video, you’ll have a clear understanding of how websites, apps, and enterprise systems manage secure login, user identity, and access control.