DevSecOps supports zero-trust security models by embedding continuous verification into every stage of the software lifecycle. Instead of assuming internal systems are trusted, pipelines enforce identity validation, least-privilege access, and automated security checks at code, build, and deployment phases. Tools like policy as code, secrets management, and continuous monitoring ensure that every component is authenticated and authorized before execution. Integrating security scanning, IAM controls, and compliance checks into CI/CD workflows helps teams detect risks early and respond quickly. Many professionals strengthen these skills through azure devops training, which teaches how to build secure, identity-aware pipelines aligned with zero-trust principles.