SDLC integrates security measures into every stage of software development.SSDL enhances SDLC by setting security objectives and preliminary threat modeling.CI/CD pipelines help automate security tasks, accelerate development, and ensure software is functional and secure.In the Planning phase, SSDL sets security objectives and aligns with compliance requirements.The Requirement Analysis phase identifies security-specific requirements like authentication, data encryption, and compliance integration.In the Design phase, secure design principles like least privilege and defense in depth are applied.SAST tools are integrated into the Development phase to detect potential threats, and code review is performed as part of secure coding practice.Automated tests in the Testing phase include unit, integration, performance, and security testing.Continuous monitoring with SIEM tools helps detect unusual activities in the Maintenance phase.Regular patch management ensures updates to libraries, frameworks, and tools to mitigate vulnerabilities.