Question posted briefly below

I don’t understand this Computer Science question and need help to study.

The Pentagon has concluded that computer sabotage coming from another country can constitute an act of war. The pentagon’s first formal cyber strategy, unclassified portions of which became public in June of 2011, represents an early attempt to grapple with a changing world in which a hacker could pose a significant threat to U.S nuclear reactors, subways or pipelines from a hostile country’s military. Recent cyber-attacks on the Pentagon’s systems by another foreign country have given new urgency to U.S efforts to develop a more formalized approach to cyber-attacks.

Read more https://www.judiciary.senate.gov/imo/media/doc/08-21-18%20Lewis%20Testimony.pdf

In this week, you learned about the security principles of deception and separation.

Discuss how the security principles of deception and separation can be applied at the national level to protect against attacks from hostile foreign nations. Identify the four stages of deceptions and how this can employed at the national level. Also, in discussing the concept of separation, ensure to identify how the concept of separation would be different in the context of national infrastructure protection. Please provide examples to support your discussion.