Jake wants to understand the root cause of a security incident. He knows a number of the events that occurred, but he wants to engage other staff members to define the root cause. What common root cause analysis (RCA) technique should he use?

The Five Why’s process is well suited to interviews because it asks “Why” each time an answer is provided to get to a root cause. The Five W’s are a common reference in journalism to who, what, when, where, and why—not a root cause analysis tool. Fishbone diagrams are commonly used for RCA, but are not as useful for an interview process. They’re more likely to be used after the interview to see how answers and events fit together. Recursion analysis is not an RCA process.