Secure coding practices: .NET Core includes tools and guidelines for secure coding practices, such as the Microsoft Security Code Analysis tool and the Secure Coding Guidelines.
Cross-site scripting (XSS) prevention: .NET Core includes built-in support for preventing cross-site scripting attacks. This includes features such as HTML encoding, content security policy, and anti-forgery tokens.
Cross-site request forgery (CSRF) prevention: .NET Core also includes built-in support for preventing cross-site request forgery attacks. This includes the anti-forgery token feature mentioned above, as well as other features like automatic generation of CSRF tokens and verification of the HTTP Referer header.
Authentication and authorization: .NET Core includes built-in support for authentication and authorization. This includes support for various authentication methods (such as cookies, tokens, and OAuth), as well as support for role-based and policy-based authorization.
Secure communication: .NET Core includes support for secure communication using HTTPS, TLS, and SSL. It also includes support for certificate validation and certificate pinning.
Security headers: .NET Core allows you to easily add security headers to your HTTP responses. These headers can help protect your application against various attacks, such as cross-site scripting and clickjacking.
Data protection: .NET Core includes built-in support for protecting sensitive data, such as passwords and keys. This includes features like data encryption and secure storage of keys and secrets.
These built-in security features can help you develop more secure applications with fewer vulnerabilities. However, it's important to keep in mind that security is a continuous process and requires ongoing attention and updates to stay ahead of new threats and vulnerabilities