Secure Software Development: Requirements, Design, and Safe Reuse

Building secure software starts long before writing the first line of code. In today's threat landscape, security must be integrated into the requirements, architectural design, and component selection phases of development rather than treated as an afterthought. This text-based course guides you through the foundational principles of threat modeling, secure design patterns, and safe code reuse, enabling you to build systems that withstand modern attacks and recover quickly from incidents. What you'll learn: - Understand core security terminology, foundational concepts, and the secure software development lifecycle. - Identify and document security requirements early in the project lifecycle to prevent vulnerabilities. - Apply secure design principles, including least privilege, defense in depth, and zero-trust basics. - Perform basic threat modeling to anticipate, evaluate, and mitigate potential system risks. - Evaluate and safely reuse third-party libraries while managing modern software supply chain risks. - Implement secure defaults and design patterns that limit the impact of successful exploits. You will start with essential security definitions and concepts before exploring systematic design methodologies. Through clear written explanations and practical design scenarios, you will learn how to make architectural decisions that prioritize security without sacrificing functionality. This course is designed for aspiring software engineers, developers, and system architects who are new to security practices. No prior security experience is required to begin. Start building a strong foundation in secure software engineering today.