What is an appropriate method for storing classified data when not in use?

Storing classified data in a GSA-approved vault or container is the most appropriate method when it is not in use. This method ensures that the data is kept in a secure environment that meets specific government standards designed to protect sensitive information from unauthorized access. GSA-approved storage solutions are specifically constructed to provide physical security, and they often include features such as strong locks and tamper-evident mechanisms, which further enhance the protection of classified materials.

Using a GSA-approved vault or container is a part of compliance with regulatory requirements regarding the handling of classified information. These regulations are in place to prevent data breaches and ensure that sensitive information is adequately safeguarded against theft, loss, or unauthorized disclosure. As a result, this choice aligns with best practices for cybersecurity and data management within the Department of Defense and other government agencies.