Using a data loss prevention (DLP) solution to monitor data saved to a USB memory device is an example of managing data at rest. Data at rest is data that is stored on a device or media, such as hard disks, flash drives, tapes, or CDs. Data at rest can be exposed to unauthorized access, theft, or loss if not properly protected. A DLP solution is a tool that monitors and controls the movement and usage of data across an organization's network or endpoints. A DLP solution can prevent users from saving sensitive data to removable devices or alert on any violations of data policies.