The information that could reasonably be expected to cause serious damage to national security if disclosed without authorization is a secret.
It should be noted that cyber awareness is to the level of awareness and understanding that end users have about cybersecurity best practices.
A good practice to protect classified information is to ensure proper labeling by appropriately marking all classified material and, when required, sensitive material.
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Complete question:
What type of information could reasonably be expected to cause serious damage to national security if disclosed without authorization?
