About this guide
SOC analysts, security engineers and IT professionals preparing for CompTIA CySA+ CS0-004 or moving into a blue-team role.
Built for practical review: read each topic, test your understanding with original scenarios, and return to the official provider outline for any exam updates.
What’s inside
- CS0-004 exam format and the four weighted domains
- Log analysis, SIEM, threat intelligence and hunting
- Vulnerability scanning, CVSS and risk-based prioritization
- Incident response lifecycle, forensics and containment
- Reporting, metrics and stakeholder communication
- 30 original questions with explanations and a six-week plan
What you’ll take away
- Triage alerts and separate real threats from noise.
- Prioritize vulnerabilities by exploitability and business risk.
- Run and report on incidents using a structured lifecycle.
Frequently asked questions
Does this cover CS0-004 or CS0-003?
It is written for CS0-004, the version CompTIA launched in June 2026, and notes where concepts carry over from CS0-003.
Do I need Security+ first?
It is not required, but CompTIA recommends Security+ level knowledge and hands-on security experience.
Are the questions from the exam?
No. All questions are original practice scenarios, not recalled exam content.