Definition
Software Development Security, often called DevSecOps, integrates security practices into every phase of the software development lifecycle. It ensures that security is not an afterthought but a fundamental consideration from initial design through deployment and maintenance. This approach involves automating security checks and controls within development pipelines, fostering collaboration between development, security, and operations teams. Implementing DevSecOps is crucial for building resilient applications, reducing vulnerabilities, and protecting sensitive data throughout the software's existence. For instance, security scanning tools can be automatically run against code commits to identify potential flaws before they are merged. This differs from traditional security models where security was often a separate, later stage, potentially causing delays and costly rework. Software Development Security is a key concept tested on exams like CompTIA Security+, CySA+, and CISSP.