The customization of firewall rules provides great value to our customers as it allows them to lock things up in the way that they desire. When it is used for internal access, with a VPN in place for remote workers, the firewalling services provided by Azure, such as the default services that can be turned on, are applied. However, the use of a software-based virtual firewall gives us greater flexibility in introducing security controls for customers who are publishing applications that are publicly accessible from the public cloud. This virtual firewall provides an additional layer of security and more extensive security control options to ensure the protection of our customers' valuable information and assets.