Picture a security team at Bluecrest Insurance, a mid-size insurer with 1,200 employees. Every morning the alert queue is full. Most alerts are routine, a few are real, and some real activity never raises an alert at all. Finding that quiet activity is the work this course teaches. You will learn it by doing, one hunt step at a time.
Threat hunting is a proactive search through telemetry (the logs and sensor data your tools already collect) for attacker activity that no alert has flagged. Alert triage sorts incoming alerts into real and not real. Incident response contains and recovers from a confirmed attack.
Each job starts from something different and produces something different. Triage starts with an alert, response starts with a confirmed incident, and a hunt starts with a question you ask yourself. Here is how the three connect at Bluecrest:
Hunts often begin with something small that does not justify an incident yet. The question is whether it deserves a deliberate search. Here is a made-up ticket note from Bluecrest that holds exactly that kind of signal. Read it and decide what you would do: