Final answer:
An IDS is most likely to detect events related to the Confidentiality tenet of the CIA triad.
Step-by-step explanation:
An IDS (Intrusion Detection System) is most likely to detect events related to the Confidentiality tenet of the CIA triad. This is because an IDS monitors network traffic and system activity to identify and respond to attempts to access or disclose sensitive information.
For example, if an unauthorized user tries to gain access to a protected database or if there is an attempt to intercept and read encrypted communications, the IDS can detect these activities and raise an alert.
However, it is important to note that an IDS can also provide some level of detection for events related to other tenets, such as Integrity (e.g., detecting unauthorized modification of data) and Availability (e.g., detecting attacks that cause denial-of-service or resource exhaustion).