An incident is an unplanned event that disrupts or degrades the normal operation or performance of an IT service, system, or network1. An incident can cause various negative impacts, such as service outages, data losses, security breaches, or customer dissatisfaction2. An incident can recur if the underlying cause or problem of the incident is not properly identified and resolved3.

The best course of action to help reduce the probability of an incident recurring is to perform root cause analysis. Root cause analysis is a systematic process of finding and eliminating the fundamental cause or problem that led to the incident4. Root cause analysis can help to:

Prevent or minimize the recurrence of the incident by addressing the source of the problem, not just the symptoms or effects

Identify and implement corrective or preventive actions that can effectively resolve or mitigate the problem

Learn from the incident and improve the IT service, system, or network quality and reliability

Enhance the incident management and problem management processes and capabilities5

References = What is an Incident?, Incident Management - Wikipedia, Problem Management - Wikipedia, Root Cause Analysis - Wikipedia, Root Cause Analysis: A Guide for Business Leaders