What is the first "W" a security administrator should consider when starting an investigation of a potential security incident?

The first "W" a security administrator should consider when starting an investigation of a potential security incident is "What." This initial focus on "What" allows the administrator to define the nature of the incident. It involves identifying what has happened—whether it is a breach, data loss, malware infection, or any other type of suspicious activity. Understanding the specifics of the incident is critical for determining the appropriate response, remediation strategy, and further investigation steps.

By establishing "What" occurred, security professionals can gather relevant data, analyze logs, detect anomalies, and interview users or witnesses, all of which are essential in forming a clear picture of the situation. This foundational understanding helps in prioritizing actions based on the severity and impact of the incident on the organization.

Considering the other options, "Where" pertains to the location of the incident, "When" involves the timing of the incident, and "Who" relates to the individuals or entities involved. While these elements are certainly important in the investigative process, they follow the initial identification stage where understanding "What" has taken place is paramount. The clarity gained from determining "What" allows the investigator to address the other questions effectively.