Jessica is conducting a forensic analysis on a Windows machine suspected of being involved in...

Option D. 4625 is the correct answer because this Windows security event is associated with failed logon attempts , which is exactly what Jessica needs to review when looking for signs of a possible brute-force attack. CHFI v11 explicitly includes Types of Logon Events , Windows 11 Event Logs and Other Audit Events , Evaluating Account Management Events , and Event logs as core forensic topics.

In a brute-force scenario, investigators look for repeated failed authentication attempts over time, often tied to the same account, source, or system. The relevant audit evidence is found in Windows event logging, and failed logons are one of the most important indicators when examining suspicious authentication activity. This aligns directly with CHFI’s emphasis on using logs as evidence and ensuring log credibility and integrity during an investigation.

The other event IDs listed are not the standard failed-logon event used for this purpose. Because Jessica is specifically trying to count and analyze failed login attempts , event ID 4625 is the best and most forensic-relevant choice under CHFI’s Windows log analysis objectives.