Organizations that deal with highly sensitive information must concern themselves with the possibility of eavesdropping. An attacker can potentially gain access to data by analyzing radio frequency (RF) signals and spurious electromagnetic emissions. Such attacks circumvent network security, encryption, and other cybersecurity countermeasures, enabling eavesdroppers to reproduce screens, record keystrokes, and capture data.
To protect against such activity, the U.S. military and national security and intelligence agencies utilize SCIFs.
What Is a SCIF?
SCIF stands for Sensitive Compartmented Information Facility. It is a room constructed to U.S. government standards to prevent outside surveillance and the interception of highly sensitive information. It is designed to facilitate the handling of sensitive compartmented information (SCI), which involves intelligence sources and processes.
Organizations that develop and test software for the federal government are required to protect SCI in a manner consistent with SCIF specifications. However, building out and maintaining a SCIF is expensive.
SCIF Room Rules, Requirements, and Uses
In the broadest sense, a SCIF is a room that does not allow visual, auditory, or electronic eavesdropping. SCIFs are often used as a meeting place for people but may also be designed to protect electronic data. Building a SCIF room takes careful planning. You must consider the use case and conform to an array of SCIF requirements.
How SCIFs Are Used
A SCIF may be set up in government buildings, private residences or hotel rooms, or onboard aircraft or ships. In some cases, an entire building is a SCIF in which all but the foyer is secure. SCIFs may be permanent, such as the White House Situation Room, or temporary structures set up as needed.
Typically, only individuals with the appropriate security clearances are allowed to enter a SCIF. If other personnel are given access, they must surrender all electronic devices and are not allowed to view classified information.
SCIF Requirements
The Office of the Director of National Intelligence, which oversees the intelligence community, has developed strict guidelines for the security and technical aspects of SCIFs. The SCIF manual (found on dni.gov) covers everything from the materials used to block sounds and signals to protocols for physical security.
SCIFs should minimize the use of windows to prevent an outsider from seeing in. Acoustic materials must prevent conversations from penetrating the walls, or “white noise” speakers may be used to mask conversations.
From an electronic perspective, SCIFs must have access controls, intrusion detection systems, and data communications that meet the highest security standards. The SCIF must also use metallic barriers to block RF signals and spurious electromagnetic emissions and filter the power coming into the room.
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