What is one of the use cases for protecting data at rest?

Protecting data at rest is crucial for ensuring the confidentiality and integrity of sensitive information stored on devices or in cloud services. One of the primary use cases for this type of protection is data discovery. Data discovery involves identifying and locating sensitive data across an organization's storage systems. By implementing measures to protect data at rest, organizations can help ensure that sensitive information is not only secured but can also be easily identified and managed. This is important for compliance with regulations such as GDPR and HIPAA, ensuring that organizations are aware of where their sensitive data resides and are taking appropriate steps to protect it.

The other options, while relevant in their respective contexts, do not directly relate to the specific purpose of protecting data at rest. Enhancing network speed pertains more to the performance of data transmission rather than its security. Improving user interface design focuses on user experiences and interactions with software, which does not involve the protective measures of data storage. Managing cloud storage is about the organization and optimization of storage resources, rather than the specific security protocols needed to protect data that is not actively being used.