Answer: The six security levels are :
1. Physical - operations center for technical equipment, guards
2. Network - firewalls, encrypting network traffic
3. User - passwords, social engineering
4. Procedural - classification levels for access to certain documents
5. File - file permissions, encryption
6. Application - software logs, application permission
These securities level are interconnected and help in making the decisions regarding system security.
Example of :
Threat Categories - Extortion, Vandalism, Trespass and Espionage
Attacker Profiles - Employee, Spy, Hacktivist
Types of attacks - Back door, Spoofing, Mail bombing
Step-by-step explanation: