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DevSecOps
Definition
DevSecOps is an approach that integrates security throughout the entire software development process, from design to deployment. The principle: security is everyone's responsibility.
DevSecOps is a software development methodology that integrates security into every phase of the software development lifecycle (SDLC), from design through deployment and maintenance. According to the Ponemon Institute, vulnerabilities discovered early in the development cycle are 30 times cheaper to fix than those found in production.
How does DevSecOps work?
DevSecOps shifts security from an afterthought to a continuous, integrated part of the development process (shift-left). In the design phase, threat modeling identifies potential threats. During coding, automated tools perform Static Application Security Testing (SAST) scanning source code for vulnerabilities. At build time, Software Composition Analysis (SCA) checks open-source libraries for known CVEs. In the test phase, Dynamic Application Security Testing (DAST) runs automated security tests on the running application. Infrastructure-as-Code scanning checks cloud configuration. Container scanning verifies Docker image security.
The DevSecOps culture
DevSecOps is more than tooling: it is a culture change. Security becomes the responsibility of the entire team. Developers receive secure coding training. Security champions in each team serve as points of contact. Security gates in the CI/CD pipeline prevent insecure code from reaching production.
Impact on organisations
The speed of modern software development with CI/CD, microservices and cloud-native architectures makes traditional security processes unsustainable. The Cyber Resilience Act (CRA) mandates security by design, requiring DevSecOps practices. NIS2 demands demonstrable security measures across the software supply chain.
Protection
Integrate SAST, DAST, SCA and IaC scanning in the CI/CD pipeline. Implement a Software Bill of Materials (SBOM). Conduct regular threat modeling sessions. Train developers in secure coding. Combine automated tests with periodic manual pentests.
How DEFION helps
DEFION provides Secure Development Training for development teams. Code Security Reviews evaluate source code security. Web Application Pentests validate the effectiveness of the DevSecOps programme.