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CompTIA CySA+ (CS0-003) Study Guide

Domain-by-domain study guide for CompTIA CySA+ (CS0-003) (CS0-003). Covers all 4 exam objectives with topic checklists, quick notes, and practice links.

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Exam Overview

Key facts before you start studying

Duration

165 min

Questions

Exam Code

CS0-003

Domains

About this exam

Citation-ready facts for CompTIA CySA+ (CS0-003) (CS0-003)

CompTIA CySA+ (CS0-003) (CS0-003) is a CompTIA certification exam with about 85 questions over 165 minutes, typically requiring a scaled score of 750 to pass. Official domain weights on CertStud: Security Operations (33%); Vulnerability Management (30%); Incident Response & Management (20%); Reporting & Communication (17%).

Use this study guide with free practice questions, the week-by-week study plan, and detailed notes. Confirm current objectives and scoring on the official CompTIA exam page before booking.

Quick Navigation

Jump to a specific exam domain

1. Security Operations (33%)
2. Vulnerability Management (30%)
3. Incident Response & Management (20%)
4. Reporting & Communication (17%)

Domain 1

33%

Security Operations

Monitor, analyze, and respond to security events using SIEM, EDR, and threat intelligence

Topics to Master

SIEM configuration and correlation rules
Threat hunting methodology
EDR and XDR platforms
MITRE ATT&CK framework
Network traffic analysis
SOAR and automation
Cloud security monitoring

Domain 2

30%

Vulnerability Management

Identify, prioritize, and remediate vulnerabilities across the enterprise

Topics to Master

Vulnerability scanning tools
CVSS v3.1 scoring
Patch management
Risk-based prioritization
Configuration management
Asset discovery
EPSS and KEV catalog

Domain 3

20%

Incident Response & Management

Detect, contain, and remediate security incidents using structured IR processes

Topics to Master

IR lifecycle (NIST SP 800-61r2)
Incident classification
Digital forensics
Malware analysis
Containment strategies
Root cause analysis
IR plan testing

Domain 4

17%

Reporting & Communication

Communicate security findings and metrics to stakeholders effectively

Topics to Master

Security metrics and KPIs
Executive reporting
Vulnerability reporting
Compliance reporting
Threat intelligence sharing
Continuous improvement

Continue Your Prep

Free CertStud resources for CS0-003

Study Notes Exam Study Plan Start Practice Test

Back to CompTIA CySA+ (CS0-003)

CompTIA CySA+ (CS0-003) Study Guide

Domain-by-domain study guide for CompTIA CySA+ (CS0-003) (CS0-003). Covers all 4 exam objectives with topic checklists, quick notes, and practice links.

Download PDF Notes

Exam Overview

Key facts before you start studying

Duration

165 min

Questions

Exam Code

CS0-003

Domains

About this exam

Citation-ready facts for CompTIA CySA+ (CS0-003) (CS0-003)

Use this study guide with free practice questions, the week-by-week study plan, and detailed notes. Confirm current objectives and scoring on the official CompTIA exam page before booking.

Quick Navigation

Jump to a specific exam domain

1. Security Operations (33%)
2. Vulnerability Management (30%)
3. Incident Response & Management (20%)
4. Reporting & Communication (17%)

Domain 1

33%

Security Operations

Monitor, analyze, and respond to security events using SIEM, EDR, and threat intelligence

Topics to Master

SIEM configuration and correlation rules
Threat hunting methodology
EDR and XDR platforms
MITRE ATT&CK framework
Network traffic analysis
SOAR and automation
Cloud security monitoring

Domain 2

30%

Vulnerability Management

Identify, prioritize, and remediate vulnerabilities across the enterprise

Topics to Master

Vulnerability scanning tools
CVSS v3.1 scoring
Patch management
Risk-based prioritization
Configuration management
Asset discovery
EPSS and KEV catalog

Domain 3

20%

Incident Response & Management

Detect, contain, and remediate security incidents using structured IR processes

Topics to Master

IR lifecycle (NIST SP 800-61r2)
Incident classification
Digital forensics
Malware analysis
Containment strategies
Root cause analysis
IR plan testing

Domain 4

17%

Reporting & Communication

Communicate security findings and metrics to stakeholders effectively

Topics to Master

Security metrics and KPIs
Executive reporting
Vulnerability reporting
Compliance reporting
Threat intelligence sharing
Continuous improvement

Continue Your Prep

Free CertStud resources for CS0-003

Study Notes Exam Study Plan Start Practice Test