In the realm of DevSecOps, the synergy between development, security, and operations is paramount. This section provides a foundational understanding of the core concepts that define DevSecOps. We'll explore why DevSecOps is crucial in modern software development, emphasizing automation and collaboration as its cornerstones. "Shift-Left" security and the integration of security practices into Continuous Integration/Continuous Deployment (CI/CD) pipelines will be central themes. These concepts form the bedrock of a secure and agile software development lifecycle. Let's delve into the essence of DevSecOps and equip ourselves with the knowledge needed to infuse security seamlessly into our development processes.