Which method of deploying a CASB involves a security appliance positioned at the client network edge that forwards user traffic to the cloud if it complies with policy?

A forward proxy is a method of deploying a Cloud Access Security Broker (CASB) in which a security appliance is placed at the edge of the client's network. This appliance functions by intercepting user traffic before it reaches the internet. When a user attempts to access cloud services, the forward proxy evaluates the traffic against predetermined security policies. If the traffic complies with these policies, the proxy forwards it to the cloud service. This ensures that all outgoing traffic is monitored and controlled, allowing organizations to enforce security measures effectively and manage connections to cloud applications.

This deployment method is particularly useful for providing visibility into cloud usage and maturing security protocols for accessing cloud services without making any changes within the user devices directly. By analyzing the traffic at the network edge, security teams can better understand user behavior and implement appropriate security measures.