Secure software development is a critical discipline focused on embedding security considerations into every phase of the software development lifecycle (SDLC). It encompasses a wide range of practices, principles, and tools aimed at preventing, identifying, and mitigating vulnerabilities in software applications. This domain involves secure design patterns, threat modeling, secure coding standards, vulnerability testing, secure deployment strategies, and ongoing maintenance to protect software from malicious attacks and ensure its integrity, confidentiality, and availability.
This domain focuses specifically on the security aspects of software creation and maintenance. It includes application security, secure coding principles, threat modeling, security testing (SAST, DAST, IAST), vulnerability management within the SDLC, and secure configuration management. It generally excludes the operational security of deployed systems outside the direct software development context, general IT infrastructure security, or broad cybersecurity management frameworks unless they directly inform software development practices. It is distinct from general software engineering where security is not the primary focus.