A Cloud Access Security Broker (CASB) is a security solution that acts as a bridge between an organization’s internal network and cloud-based applications. It monitors, manages, and secures data interactions with cloud services, ensuring that users comply with security policies while accessing cloud resources. CASBs offer capabilities such as data encryption, threat detection, access control, and data loss prevention, helping organizations maintain security and compliance across various cloud environments. By providing visibility and control over data in the cloud, CASBs help protect against unauthorized access, data leaks, and potential cyber threats.