Cloud Access Security Brokers (CASBs) serve as a critical control point to ensure the secure and compliant use of cloud apps and services. Cloud service providers typically maintain a shared responsibility policy for security-they guarantee the integrity of their service infrastructure, but the customer is responsible for securing actual app usage. In addition to the growing cloud security challenges organizations face to safeguard data and protect against threats in the cloud, total volume of cloud app adoption is accelerating, with most of it being done by business units and employees without approval or security oversight from the IT organization. As a result, CASB functionality has become so critical that by 2020 it is projected that 80% of enterprises will use a CASB solution. (Gartner)