Development methodologies have a direct impact on how security is integrated into software projects. This episode compares three major approaches—Waterfall, Agile, and DevOps—and how each handles risk, testing, and control. You'll learn the strengths and challenges of each model, including change management, documentation, and time-to-delivery. We also explore how DevSecOps brings security into the CI/CD pipeline. CISSPs must be familiar with these approaches to advise development teams, align controls with process realities, and adapt governance to fast-moving development environments.