The greatest concern in a CI/CD environment is the accuracy of automated testing. Since code is deployed rapidly and often without manual intervention, weak or inaccurate test cases can allow vulnerabilities and defects to be pushed directly into production. Release frequency (A) and changing user requirements (D) are expected characteristics of agile/DevOps models and can be managed with governance. Delayed post- implementation reviews (B) may reduce oversight but do not directly undermine the core pipeline integrity. ISACA's DevOps guidance emphasizes that automated testing and validation of requirements must be thorough and reliable to ensure continuous deployment does not compromise quality or security. References (ISACA): COBIT Focus Area for DevOps; BAI06 Managed IT Changes.