The exhibit provides a detailed view of a FortiSIEM incident. The key field for answering this question is Cleared By, which explicitly states Rule. This indicates that the incident was resolved automatically when FortiSIEM received an event that met the "Clear Condition" defined within the same correlation rule that initially triggered the incident. For example, a "High CPU Utilization" incident could be automatically cleared by a subsequent event indicating "Normal CPU Utilization" from the same source.

A. If an analyst had manually cleared the incident, the Cleared By field would display the analyst's username, not the word "Rule".

B. The incident was triggered at 10:00:00 and cleared at 10:05:00, a duration of only five minutes, which contradicts the 24-hour timeframe.

D. While an event from the endpoint (like a "CPU Normal" log) likely triggered the clear, the mechanism that processed this event and cleared the incident was the rule itself, as stated in the exhibit.

1. FortiSIEM 7.2.0 Administration Guide

Page 218

"Defining Rule Conditions": "A rule can have a clear condition

which is an event that clears an incident that was triggered by the rule. For example

a rule that triggers an incident when a device goes down could have a clear condition for when the device comes back up." This document confirms that rules can have built-in

automatic clearing conditions.

2. FortiSIEM 7.2.0 Administration Guide

Page 208

"Viewing Incidents": This section describes the incident dashboard fields. The Cleared By column indicates the user or system component that cleared the incident. A value of "Rule" specifically means the rule's clear condition was met.