DevSecOps integrates security into every stage of the software lifecycle, from initial commit to production workloads. In the CI/CD phase, static application security testing (SAST) tools analyze code for vulnerabilities, while software composition analysis (SCA) tools scan for risky open‑source dependencies. Dynamic analysis and container scanning ensure that images and APIs are hardened before deployment. In Kubernetes environments, policy engines like Open Policy Agent (OPA) enforce security rules at admission time, preventing misconfigured or non‑compliant workloads. At runtime, cloud‑native security platforms monitor workloads continuously, detect anomalous behavior, and respond automatically to incidents. By shifting security left and embedding it into automation, DevSecOps reduces release friction, accelerates feedback loops, and strengthens the overall security posture without slowing innovation.