DevSecOps

DevSecOps extends the DevOps culture of rapid, automated delivery by making security a shared responsibility of everyone who builds and runs the software. Instead of a separate security team inspecting finished releases, security checks run automatically inside the CI/CD pipeline: static analysis on every commit, dependency and container scanning at build time, and policy gates that fail the build when a serious finding appears. Security becomes a routine part of delivery rather than an event.

The defining idea is shift-left: moving security activity as early in the SDLC as it can usefully go. A bolt-on review at release finds problems when they are most expensive to fix and turns the security team into a bottleneck the business will route around. Automation changes the economics; a pipeline check costs seconds per build, scales with delivery speed, and gives developers feedback while the code is still fresh in their heads.

Exam relevance: if a scenario mentions security testing automated into the pipeline, security as everyone’s responsibility, or shifting security left, the answer is DevSecOps. The classic wrong answer is a manual security review gate at the end of development. Contrast DevSecOps, the delivery culture and tooling, with the SDLC itself, which is the phase model DevSecOps compresses into a continuous automated loop.