Continuous Integration and Continuous Deployment (CI/CD) are essential methodologies in modern software development, enabling rapid delivery of features and updates. However, they come with inherent security risks that necessitate integrating robust security measures throughout the pipeline. This text explores the challenges and risks associated with CI/CD security, such as frequent code changes, integration issues, and the need for continuous security testing. It emphasizes the importance of prioritizing security at every stage, from securing the code repository to implementing access control policies and monitoring for breaches. Best practices include using automated security testing tools like OWASP ZAP, maintaining secure configurations with Infrastructure as Code (IAC), and employing security tools like Static Code Analysis, Dynamic Application Security Testing (DAST), and Interactive Application Security Testing (IAST). The choice of security tools should consider compatibility, ease of integration, and cost. By adhering to these practices and leveraging appropriate technologies, organizations can enhance the security of their CI/CD processes, thereby mitigating risks and improving software quality.