Which storage locations must be kept locked when not under direct supervision?

• A. Security containers, open storage areas, and vaults
• B. Office desks and filing cabinets
• C. Exterior doors
• D. Personal desks in the workspace

Answer: (A)

Classified information must be locked away whenever it isn’t under direct supervision. The places that meet this requirement are security containers, open storage areas, and vaults. Security containers are the approved, tamper-resistant units designed specifically to prevent access by unauthorized people. Vaults provide the highest level of protection for highly sensitive material. Open storage areas within a controlled space still need to be locked when you’re not supervising them to ensure that only authorized personnel can reach the contents. Perimeter options like exterior doors address entry to the building, not the storage of information, and personal desks or ordinary filing cabinets aren’t automatically secure storage for unattended classified material unless they’re within an approved locked container or secure area.