Which part of the CIA triad is focused on preventing unauthorized access?

Confidentiality is the part of the CIA triad that specifically addresses the protection of information from unauthorized access. It ensures that sensitive data is only accessible to those who are authorized to view it. This is achieved through various security measures, such as encryption, access control lists, and authentication protocols. By maintaining confidentiality, organizations safeguard personal and proprietary information from potential breaches or leaks that could lead to data misuse.

Integrity, while also crucial, pertains to the accuracy and trustworthiness of data, ensuring that it is not altered or tampered with by unauthorized individuals. Availability focuses on ensuring that data and resources are accessible when needed, which is more about uptime and performance than security. Accountability relates to identifying and holding individuals responsible for their actions with data, rather than preventing unauthorized access itself. Thus, confidentiality is the primary aspect of the CIA triad that aims to prevent unauthorized access to information.