Best Recommendation for Data Loss Prevention (DLP) in the Cloud

C.

The best recommendation to address the issue of no visibility to data stored in the cloud, based on the options provided, is to employ a Cloud Access Security Broker (CASB) (Option C).

A CASB is a security solution that is specifically designed to provide visibility and control over the data that is stored in the cloud. It acts as an intermediary between the organization's on-premises infrastructure and the cloud provider's infrastructure, and can be used to monitor and control the flow of data between the two.

A CASB solution can provide several benefits to an organization, including:

1. Increased visibility: A CASB can provide visibility into all cloud services being used by the organization, the data being stored, and the users accessing that data.

2. Enhanced security: A CASB can enforce security policies and provide protection against data loss, malware, and other cyber threats.

3. Compliance: A CASB can help the organization comply with regulatory requirements by providing monitoring and reporting capabilities.

In contrast, option A (Implement a file system scanner to discover data stored in the cloud) may not be effective since it only discovers data and does not provide control over it. Furthermore, option B (Utilize a DLP tool on desktops to monitor user activities) is not an effective solution since it does not address the issue of data stored in the cloud, and instead focuses on monitoring user activity on local desktops. Finally, option D (Enhance the firewall at the network perimeter) may not be sufficient to address the issue since it does not provide visibility and control over the data stored in the cloud.