What is a major benefit of implementing a CASB?

Implementing a Cloud Access Security Broker (CASB) primarily provides the advantage of enforcing consistent security policies across various cloud services. This is crucial as organizations often use multiple cloud applications that may have different security protocols and policies. A CASB acts as a gatekeeper, allowing organizations to establish, enforce, and monitor security policies uniformly across all cloud environments.

By centralizing policy management, CASBs help ensure compliance with regulatory standards and reduce the risk of data breaches, as they can provide visibility into the use of cloud applications and help detect any anomalous behaviors or policy violations. This consistent enforcement helps organizations understand their overall cloud security posture and respond to potential threats more effectively.

The other options do not encapsulate the primary purpose of a CASB. Reduced need for cloud services is misleading, as CASBs are about improving security within existing cloud services rather than eliminating them. Lower costs associated with data storage is not directly a benefit of CASB implementation, as it focuses more on security than cost reduction. Lastly, increased reliance on third-party vendors does not align with the CASB's role, which aims to enhance an organization’s control over its own data security rather than increasing dependency.