HashiCorp Vault offers zero trust security solutions for Microsoft Azure, enabling organizations to build secure cloud environments. The partnership between HashiCorp and Microsoft has led to integrations that make HashiCorp products work seamlessly with Azure's native capabilities. Five common use cases for using Vault with Azure include identity-based authentication to Vault using Azure Active Directory, dynamic secrets generation for Azure resources with Vault, granular authorization to Azure resources with Azure Managed Service Identities, encryption of everything including data with Vault Key Management Secrets Engine (KMSE) for root of trust with Azure Key Vault, and automating secrets management with Vault Agent on AKS. Additionally, best practices for running Vault on Azure include auto-unsealing Vault with Azure Key Vault, using Azure Key Vault to establish secure communication with Vault via TLS, streamlining Vault image creation with Azure Shared Image Gallery, encrypting managed disks on Vault (OS and data) with Azure KEK, and achieving high availability for Vault with Azure Availability Zones.