.NET Application Security: Secure Coding and Defense Practices

Building modern software requires more than just functional code; it demands robust defense against evolving cyber threats. As a developer working with the .NET ecosystem, understanding how to secure your applications from the very first line of code is an essential professional skill. This text-based course guides you through the core principles of application security specifically tailored for .NET. You will transition from writing standard code to architecting highly secure, resilient applications by understanding how attackers exploit vulnerabilities and how to systematically block them. What you'll learn: Understand foundational security terminology and the core principles of the secure software development lifecycle; Identify and mitigate the OWASP Top 10 vulnerabilities within ASP.NET Core applications; Implement modern authentication and authorization flows using secure industry standards; Apply secure coding practices to protect database interactions, handle file uploads, and manage sensitive configuration data safely; Configure built-in .NET security middleware to defend against cross-site scripting and cross-site request forgery; Practice threat modeling concepts to proactively find and fix security flaws before deployment. The course begins with essential security definitions and foundational concepts before moving into practical, step-by-step secure coding techniques. Through clear written explanations and structured code analysis, you will explore real-world defense strategies for modern .NET web applications. This course is designed for junior developers, software engineers, and security enthusiasts who are new to application security and want to build a strong foundation in secure .NET development. No prior security experience is required. Start reading today to elevate your development practices and build software that stands strong against modern threats.