CYBER SECURITY / IT

1. The 6 security properties (confidentiality, integrity, availability, authentication, nonrepudiation, and audibility) are all interrelated. Describe an example of how a violation of integrity might lead to an authentication problem.
2. Consider the "audibility" security property. Unlike the other properties, a lack of audibility does not necessarily imply a security vulnerability (the degree of audibility of a system does not determine how hard or easy it is to attack). So, what benefit does audibility provide? Why is this an important part of security?
3. Consider the time-based security model described in chapter 2 of the book. This is clearly an improvement over the fortress model, but it is still not sufficient. Describe one downside or issue of the time-based security model