Here are ten steps to improve cloud security when using CI/CD pipelines:

1. Implement secure authentication and access control for the CI/CD pipeline.

2. Use encrypted communication channels for data transfer within the pipeline.

3. Regularly update and patch all components of the CI/CD pipeline.

4. Implement static code analysis to identify and fix security vulnerabilities.

5. Use container scanning tools to detect security issues in container images.

6. Implement dynamic application security testing (DAST) in the pipeline.

7. Use secrets management tools to securely store and manage sensitive information.

8. Implement a least-privilege model for access control within the pipeline.

9. Regularly monitor and audit the CI/CD pipeline for suspicious activities.

10. Ensure proper network segmentation and firewall rules for the CI/CD infrastructure.