DevSecOps is a methodology that integrates security into every phase of the software development lifecycle. It combines development (Dev), operations (Ops), and security (Sec) practices so teams work collaboratively, embedding security controls from design through application deployment.
Traditionally, security was added at the end of the development process, leading to delays and vulnerabilities. With DevSecOps, companies reduce risk by identifying security issues early, accelerate delivery times, and meet regulatory requirements without slowing innovation.
It involves using automated tools to analyze code, assess third-party dependencies, scan containers, and monitor production environments. It also shares a core principle with the Zero Trust model: never trust by default. Both approaches reinforce the idea that security must be built in from the start.