Implement a monolithic security model across all microservices, leveraging existing security tools without modification, to ensure consistency and reduce complexity.

Deploy a perimeter-based security model only, assuming internal service-to-service communication within the microservices architecture is inherently secure and does not require additional safeguards.

Adopt a comprehensive security strategy that includes secure service-to-service communication, dynamic secret management, and continuous monitoring to address the unique challenges of microservices, such as the expanded attack surface and compliance requirements.

Rely solely on the cloud provider's default security settings for microservices, assuming they are fully compliant with industry regulations and adequately protect against all potential threats.