During a post-incident investigation, what is a fundamental aspect of root cause analysis?

The focus of root cause analysis during a post-incident investigation is to delve into the layers of an incident by working backward from the immediate causes to uncover the ultimate cause of the issue. This approach allows organizations to investigate beyond superficial symptoms and understand the underlying factors that led to the incident. By identifying the root cause, organizations can implement effective measures to prevent recurrence, which improves overall security posture.

It's essential to recognize that root cause analysis is a thorough process, requiring comprehensive information gathering and consideration of various elements, including both technical systems and human factors. This methodical investigation helps ensure that future incidents can be mitigated through more informed and structured plans.