ASP.NET - Authentication

Authentication verifies user identity, while authorization controls access to resources. These are security fundamentals in ASP.NET.

ASP.NET provides built-in support for Identity, JWT tokens, OAuth, and OpenID Connect. These mechanisms enable secure login systems.

Authorization can be role-based or policy-based. Policies provide fine-grained access control beyond simple roles.

Security misconfiguration is a common cause of data breaches. Proper implementation is mandatory.

Authentication and authorization are core responsibilities of any backend developer.