What’s the best approach to enforcing identity boundaries across services?

Example Concept: Use IAM policies to define precise permissions for each service, ensuring they only access necessary resources. Implement role-based access control (RBAC) to manage permissions based on roles within your organization. Utilize service accounts for machine-to-machine communication, and enforce multi-factor authentication (MFA) for human users. Regularly audit and review access logs to detect and respond to unauthorized access attempts.