Which of the following is not part of the CIA Triad?

The CIA Triad is a fundamental model in information security that outlines three core principles: Confidentiality, Integrity, and Availability. Each element plays a crucial role in protecting data:

• Confidentiality ensures that sensitive information is accessed only by those authorized to view it, preventing unauthorized access and breaches.

• Integrity refers to maintaining the accuracy and reliability of data, ensuring that information remains unaltered and trustworthy throughout its lifecycle.

• Availability means ensuring that information and resources are accessible to authorized users when needed, minimizing downtime and service interruptions.

Authentication, while a significant aspect of security, focuses on verifying the identity of users or systems trying to access resources. Although it supports the principles of the CIA Triad by guarding against unauthorized access, it is not one of its core components. Therefore, the inclusion of authentication alongside the three foundational principles of the CIA Triad does not fit, highlighting why this option is the correct answer in identifying which is not part of the CIA Triad.