CSharp-Coder

Learn authentication vs authorization in ASP.NET Core with practical C# code, JWT, and policy examples. Secure your .NET apps the right way—start now. If you are building secure web APIs or web apps in .NET, understanding authentication vs authorization in ASP.NET Core is the single most important security skill you can master. These two concepts are constantly confused—even in production code reviews—yet they protect completely different things. Authentication answers "Who are you?" while authorization answers "What are you allowed to do?" Get them wrong, and you ship either a locked-out app or a data breach waiting to happen. In this complete security guide, you'll learn exactly how ASP.NET Core authentication and authorization work under the hood, see runnable C# code for JWT, role-based, and policy-based access control, and walk away with the best practices and common pitfalls that senior .NET engineers use to keep apps secure. Authentication ...