Azure Firewall is a managed, cloud-based network security service that protects your Azure Virtual Network resources.

It is a fully stateful firewall as a service with built-in high availability and unrestricted cloud scalability.

Azure Firewall Premium is a next-generation firewall with capabilities that are required for highly sensitive and regulated environments.

Azure Firewall Standard is a managed, cloud-based network security service that protects your Azure Virtual Network resources.

Microsoft’s Azure Firewall is a cloud-native security solution for Azure environments.