Q: Confidentiality, integrity, and availability or the CIA triad of security is introduced in this session. These three dimensions of security may often conflict. Confidentiality and integrity often limit availability.

So, a system should provide only what is truly needed. This means that a security expert has to carefully analyze what is more important among these three dimensions of security in a system or application.

Please provide an example (and justification) where the confidentiality of a system is more important than the integrity or availability of that system.

Then provide an example where the integrity of a system is more important than the confidentiality or availability of that system.

Finally, provide an example of a system where the availability of a system is more important than the confidentiality or integrity of that system.

For example, you might say availability is more important than integrity and confidentiality in a cell telephone system since one must be able to reach their loved ones in an emergency.

Someone else might argue confidentiality/privacy is more important in such a system.