Continuous Integration and Continuous Deployment (CI/CD) pipelines have become essential infrastructure for delivering software efficiently, but they also attract cyber attackers due to their centralized and automated processes. Securing your development pipeline is crucial to protect against unauthorized access and vulnerabilities throughout the entire software supply chain. Implementing shift-left security, integrating security scanning tools, securing credentials and sensitive data, implementing secure code review processes, automating security checks, role-based access control (RBAC), and incident response planning are essential best practices for protecting your development pipeline from increasingly sophisticated threats. By following these guidelines, organizations can safeguard their reputation, customer trust, and business continuity while enhancing productivity with frictionless developer experiences.