What is the function of a Cloud Access Security Broker (CASB)?

The function of a Cloud Access Security Broker (CASB) primarily involves enhancing the visibility and control of cloud services. This technology acts as an intermediary between users and cloud service providers, allowing organizations to monitor and manage the security of their cloud environments more effectively.

CASBs provide essential capabilities such as tracking user activities, enforcing data security policies, and ensuring compliance with regulations. They enable organizations to gain visibility into all cloud applications being accessed, which is critical for identifying potential security risks and managing sensitive data in the cloud.

By functioning in this manner, CASBs help organizations to secure their cloud assets while maintaining productivity and ensuring that security policies are adhered to across all cloud services. This makes visibility and control the cornerstone of CASB functionality, aligning perfectly with the chosen answer.