SECURE SOFTWARE ENGINEERING: EMBEDDING CYBERSECURITY REQUIREMENTS THROUGHOUT THE DEVELOPMENT LIFECYCLE

Abstract

As cyber threats evolve quickly, modern software engineering requires a security-focused strategy that covers the entire project and development lifecycle. This research looks at how incorporating cybersecurity requirements from the earliest planning stages through design, coding, testing, deployment, and ongoing maintenance improves the overall security of software systems. By blending secure-by-design principles with modern project management methods, the study emphasizes that security should be a continuous, fundamental part of the process rather than just a technical task. Using guidance from well-known standards and frameworks, such as NIST SSDF, OWASP, ISO 27001, CMMI, SSE-CMM, Microsoft SDL, TSP-Secure, SAMM, and other maturity-model-based approaches, the analysis identifies key practices. These include early threat detection, risk analysis, secure coding, automated security checks, supply chain assessments, and collaboration among technical, managerial, and compliance teams. The paper also explores new technologies like cloud computing, artificial intelligence, blockchain, and post-quantum cryptography. It notes their dual role as both innovative tools and potential security threats. Overall, the research finds that incorporating clear and consistent security requirements into every development stage leads to more reliable, compliant, and resilient digital solutions that can handle today’s cybersecurity challenges.