Conquer the 2025 CISSP Challenge – Master Your InfoSec Skills with Confidence!

Confidentiality aims to protect information from being disclosed to unauthorized subjects. This principle of information security ensures that sensitive data is only accessible to those who have been given the necessary permissions. Protecting confidentiality is crucial for maintaining the trust of individuals and organizations, as the misuse or exposure of data can lead to significant harm, including identity theft, loss of proprietary information, and damage to an organization's reputation.

In contrast, the other choices pertain to different aspects of information security. For example, the protection of data integrity focuses on preventing unauthorized modifications to data, ensuring that the information remains accurate and trustworthy. System performance relates to how well a system functions under various conditions, including the presence of threats, rather than directly involving the access to or disclosure of information. Physical security specifically addresses the protection of hardware and physical assets from theft or damage, which is distinct from the concepts of confidentiality.