What does the acronym CASB stand for in cloud computing?

The correct answer is "Cloud Access Security Broker." In cloud computing, a CASB is a security policy enforcement point that is positioned between cloud service users and cloud applications. Its primary function is to provide visibility and control over the use of cloud services and protect sensitive data as it moves to and from the cloud.

CASBs perform a variety of critical functions, including monitoring cloud application traffic, enforcing security policies, ensuring compliance with regulations, and identifying potential threats. They help organizations manage the risks associated with the use of cloud applications, especially for services that may not have built-in security measures.

The other options do not accurately describe what a CASB is or its function in the context of cloud security. For example, while "Cloud Application Security Backup" and "Cloud Architecture Security Base" suggest a focus on security, they do not capture the essence of access control and policy enforcement inherent to a CASB's role. "Cloud Activity Security Bias" also fails to represent the core function of a CASB accurately and introduces unrelated terminology. Therefore, understanding that a CASB is fundamentally about controlling access and security in cloud environments clarifies why the correct option is "Cloud Access Security Broker."