Cockroach Labs has enhanced the security features of CockroachDB Cloud on Microsoft Azure by introducing Customer-Managed Encryption Keys (CMEK) and Egress Perimeter Controls, aimed at meeting stringent regulatory requirements for industries such as healthcare and financial services. These new capabilities allow customers to manage their cryptographic keys directly through Azure Key Vault, ensuring complete control over key lifecycle, rotation, and revocation, which is crucial for HIPAA and PCI DSS compliance. Egress Perimeter Controls provide an additional layer of security by allowing organizations to define specific network endpoints for outbound data traffic, thus preventing unauthorized data exfiltration. This integration with Azure's ecosystem leverages modern authentication methods, such as Azure Workload Identity, allowing secure key access without exposing key material. These features support the development of scalable, resilient applications on Azure while maintaining robust security and compliance, making CockroachDB a suitable choice for enterprises in regulated sectors.