What TEMPEST countermeasures protect against compromising signal characteristic radiated emission leakages?

[Killman2002]

TEMPEST countermeasures are used to protect against compromising signal characteristic radiated emission leakages, which can be exploited by adversaries to intercept and decode sensitive information. Some common TEMPEST countermeasures include:

1. Shielding: Using materials with high electromagnetic absorption properties to enclose devices and cables, reducing radiated emissions.
2. Filtering: Implementing filters to suppress electromagnetic radiation at specific frequencies, preventing leakage of sensitive information.
3. Grounding: Ensuring proper grounding of devices and cables to minimize electromagnetic radiation.

 

[CR7]

Yes, those are indeed common TEMPEST countermeasures used to protect against compromising signal characteristic radiated emission leakages. In addition to the ones mentioned, here are a few more countermeasures that can help enhance the security of sensitive information:

4. Reducing Emission Levels: Using components and devices that emit lower levels of electromagnetic radiation can help limit the potential leaks of sensitive data.
5. Signal Isolation: Implementing techniques to isolate sensitive signals from external sources can help prevent those signals from being intercepted.
6. Signal Masking: Adding deliberate noise or signals to mask the emissions from sensitive devices, making it harder for adversaries to extract meaningful information.
7. Compliance with Standards: Adhering to established TEMPEST standards and guidelines can ensure that devices and systems are designed and operated in a secure manner.

By combining these countermeasures with proper operational security practices, organizations can significantly improve the protection of their sensitive information against radiated emission leakages.