CISSP Security Operations Concepts
Dr. Abeer Alshammari · Published 7/29/2026
Security operations is where most day-to-day defensive work happens, and Domain 7 tests whether you know the correct sequence and reasoning behind incident handling, not just the tools.
Incident response phases
- Preparation -- policies, tooling, and trained staff in place before anything happens
- Detection and Analysis -- identifying and confirming an incident occurred
- Containment -- limiting damage (short-term containment vs. long-term containment are distinct steps)
- Eradication -- removing the root cause, not just the symptom
- Recovery -- restoring systems to normal operation, with monitoring for recurrence
- Lessons Learned -- post-incident review that feeds back into Preparation
Forensics: preserving the chain of custody
Digital forensics principles focus on preserving evidence integrity: documenting who handled evidence, when, and how, so it remains admissible if needed. Order of volatility matters -- capture RAM and network state before less volatile data like disk images, since volatile evidence disappears first.
Logging and monitoring
Centralized log collection (SIEM) supports both detection and forensic reconstruction after the fact. The exam expects you to recognize that logs need to be protected from tampering (write-once storage, restricted access) precisely because they may become evidence.
Try it yourself
An interactive CyberAbeer experience for this topic is in development.
Coming soon