A CASB solution protects businesses against these cybersecurity risks by blocking shadow IT installations and encrypting data if needed. In addition, a CASB can enforce a business’ specific data security and compliance policies to help mitigate accidental and intentional data leaks (known as “data loss prevention” or DLP) to and from the cloud. CASBs also act as an important line of defense for organizations with remote work and bring your own device (BYOD) policies, as the CASB extends security policies to employee devices connecting to corporate networks and multiple cloud resources from outside a corporate office, such as public WiFi, mobile internet via LTE and 5G, and home broadband.
At a high level, CASB solutions control business user access to cloud-based assets in three steps:
According to industry analysts at Gartner, there are three key criteria for selecting a CASB vendor: