Securing ASP.NET Core APIs with Microsoft Entra ID Authentication

Securing ASP.NET Core APIs with Microsoft Entra ID Authentication

Secure ASP.NET Core APIs with Microsoft Entra ID. Learn authentication, configuration, and best practices for robust API security.

What happened?

IntroductionAPIs often expose sensitive business data such as customer information, financial records, and internal operations. If these APIs are not properly secured, unauthorized users or applications may gain access to confidential information. One of the most reliable ways to secure ASP.NET Core APIs is by using Microsoft Entra ID (formerly Azure Active Directory). It provides a centralized identity platform that authenticates users and applications before allowing access to protected resources. Instead of managing usernames, passwords, and authentication logic within your application, you can rely on Microsoft Entra ID to handle identity management while your API focuses on authorization and business logic. In this article, you'll learn how Microsoft Entra ID authentication works with ASP.NET Core APIs, how to configure it, and the best practices for securing enterprise applicati...

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