What does the acronym CASB stand for in cybersecurity?

The acronym CASB stands for Cloud Access Security Broker. This term is widely recognized in the field of cybersecurity, particularly in the context of securing cloud environments. A CASB acts as an intermediary between cloud service users and cloud service providers, providing critical visibility, compliance, data security, and threat protection services.

In practice, CASBs help organizations monitor and control how their data is used in cloud applications, manage data governance, implement security policies, and ensure compliance with regulations. They also support the protection of sensitive data, regardless of where it resides—whether in a public cloud, private cloud, or hybrid environment.

The other options presented do not accurately reflect the widely accepted definition of CASB in the industry, making "Cloud Access Security Broker" the correct and pertinent choice.