What does the submission of information for a TEMPEST countermeasure review imply?

• A. It signifies a mandatory requirement for implementing countermeasures
• B. It is an optional step without further obligations
• C. It ensures immediate approval for all TEMPEST implementations
• D. It indicates a potential requirement, but not a mandate for implementation

Answer: (D)

The submission of information for a TEMPEST countermeasure review indicates a potential requirement, but not a mandate for implementation. This means that while submitting the information is a necessary step to evaluate whether TEMPEST mitigations are needed, it does not automatically entail that measures must be enforced. The review provides an opportunity for assessment and recommendations based on specific circumstances, but the actual implementation of countermeasures may depend on additional factors, such as the results of the analysis and the determination of risk levels.

In the context of TEMPEST (an acronym related to compromising emanations), the review aims to assess vulnerabilities and suggest adequate security measures, yet it leaves room for discretion in how and whether to apply those measures based on the unique environment and threat assessments involved.