Compliance-by-Design Cloud Security Automation: Integrating Identity, Auditability, and Serverless Controls

Abstract

Compliance-by-Design principles provide a structured approach to integrating security, auditability, and policy enforcement into cloud-native environments. This study develops an integrated framework for cloud security automation that combines identity governance, continuous audit monitoring, and serverless controls. The framework was evaluated across AWS Lambda, Azure Functions, and Google Cloud Functions using scenario-based testing and cross-platform comparison. Results demonstrate that dynamic role assignment, least privilege enforcement, and real-time policy monitoring enhance regulatory compliance while reducing human intervention. The audit and monitoring mechanisms produced comprehensive, verifiable evidence aligned with ISO/IEC 27017 and 27018 standards, while serverless control policies effectively prevented unauthorized function execution and misconfigurations. The framework shows strong adaptability to platform-specific constraints, providing a centralized compliance dashboard, real-time alerts, and automated remediation capabilities. Findings suggest that an integrated, layered approach significantly improves compliance coverage over isolated security or audit mechanisms. Limitations include variations in cross-service monitoring, audit granularity, and real-time remediation capabilities across platforms, highlighting areas for further enhancement. The study contributes a practical, operational model for implementing compliance-by-design in dynamic, multi-cloud serverless environments, providing guidance for organizations seeking automated, continuous compliance solutions.