I often get stuck when asked about the stages of Incident Response during SOC analyst interviews. Should I follow the NIST framework or the SANS process? What are the key technical details I need to mention for each step to prove that I actually know how to handle a live security breach in a corporate environment?
3 answers
Just remember: detect, fix, and learn. If you can explain how to stop an attack from spreading, you've already answered 80% of what they want to hear.
Most interviewers prefer the SANS "PICERL" acronym: Preparation, Identification, Containment, Eradication, Recovery, and Lessons Learned. When explaining it, emphasize "Containment" as the most critical step to stop the "bleeding." Mention specific tools like using an EDR to isolate an infected host or blocking malicious IPs at the firewall. Also, don't forget the "Lessons Learned" phase; many candidates skip it, but it's vital for showing you care about improving security posture and preventing future occurrences.
During the Identification phase, what specific log sources would you mention checking first to confirm if a detected alert is a true positive or just a false alarm?
James, I always tell people to mention SIEM logs first, specifically looking at Sysmon for endpoint behavior and Firewall/Proxy logs for network traffic. Correlating an unusual process execution on a workstation with a suspicious outbound connection to a known C2 server is the "smoking gun" that confirms a real incident. Mentioning this specific correlation process shows you have actual hands-on experience.
True, Linda. The technical tools change, but the logic of containing a threat quickly remains the same across every enterprise security team.