Answer:
1. These three letters stand for confidentiality, integrity, and availability, otherwise known as the CIA triad.
2. Is a model designed to guide policies for information security within an organization.
3. Information confidentiality is more important than integrity or availability in the case of proprietary information of a company.
4. 1998 It is, however, not clear when the CIA became a triad. The foundational concept seems to have been established by 1998.
