BACKGROUND: This fix is concerned with ensuring there is periodic visual validation of structural integrity of secure room/collateral classified open storage area perimeters containing SIPRNet assets and associated media. It ensures that any breach or attempted breach of the walls, true floors, and true ceilings of a secure area (portions that are not readily visible) are discovered in a timely manner.
In requirement #1 there are three different situations covered and each requires a different level of physical/visual validation for structural integrity.
Requirement #1. Structural integrity of secure rooms or spaces containing SIPRNet equipment must be validated in each situation as follows:
Situation #1 (No structural integrity checks required): If interior IDS (motion detection) is properly employed (directly covering all SIPRNet assets) within the secure room or collateral classified open storage space where classified SIPRNet assets are located AND under raised floor spaces (if applicable) AND above suspended ceiling spaces (if applicable), then no physical check for structural integrity is required. This is contingent upon the interior motion sensors being activated when the room is closed or unattended and the sensors working properly as determined by required checks of sensor functionality.
Situation #2 (Checks required IAW written guidance from AO): If motion sensors are properly employed ONLY within the secure room space where classified assets are located, then a visual check of spaces below raised floors, above suspended ceilings, and anywhere else the perimeter of the secure area cannot be readily observed must be conducted IAW AO written guidance. The goal is to visually inspect all walls, true floor, and true ceiling perimeters for signs of breach or attempted breach.
Situation #3 (Checks required IAW written guidance from AO): When random checks (not exceeding four hours) of secure rooms or open storage spaces are used in lieu of IDS, then the checks specified in situation #2 for above suspended ceilings and below raised floors must be conducted IAW AO written guidance. The increased frequency of checks is due to the significant vulnerability of the SIPRNet assets to undetected attack from portions of the perimeter that cannot be readily observed. NOTE: Physical inspection of the perimeter walls, floor, and ceiling can be greatly expedited and may be conducted without ladders or other equipment where there are no false/suspended ceilings and/or raised floors within or surrounding the secure room or area.
NOTE: If the entire perimeter of the secure room or area is surrounded by a secret or top secret (TS) Controlled Access Area (CAA), the frequency of structural integrity checks may be reduced to once every two weeks. This is due to the increased security-in-depth provided by the CAA. A secret or TS CAA is an area where unescorted access is granted only to individuals who have a secret or higher security clearance. All others are escorted by cleared employees. The DOD does not provide specific physical security requirements for a CAA but allows each CC/S/A Senior Agency Official (SAO) for Information Security the authority to establish such standards. All the Services have established standards for CAAs within their Protected Distribution System (PDS) implementing guidelines. Minimally, all require some form of access control methodology (AECS/guards/reception, etc.) be in place to ensure only properly vetted and cleared personnel have unescorted access to a CAA.
Requirement #2. There must be written procedures developed for the checks and the checks must be documented and maintained on file for a minimum of 90 days. Where discrepancies (holes in perimeter or other signs of successful or attempted access) are noted, these checks will be maintained indefinitely or until an inquiry determines the cause of the discrepancy.