🛡️ CompTIA CySA+ (CS0-003)

An independent, free exam-preparation course that walks through the publicly published CompTIA CySA+ CS0-003 exam objectives across the four official domains — Security Operations (33%), Vulnerability Management (30%), Incident Response & Management (20%) and Reporting & Communication (17%). It uses visual lessons, worked analyst scenarios, original self-check questions and a 45-question final exam to build exam-ready skill in threat intelligence, SIEM and log analysis, network and endpoint telemetry, malware and behavioural analysis, vulnerability scanning and CVSS-based prioritisation, threat hunting, the MITRE ATT&CK framework, the incident-response lifecycle, digital forensics and analyst reporting. It is awareness/prep only — not the official CompTIA training or the certification exam itself — and claims no CompTIA affiliation or endorsement. The course is organized into 22 modules, ending with a final exam (pass mark 80%). It is independent, free exam-preparation training — not an official or accredited review course.

What you'll learn

• Domain 1: CySA+ CS0-003 Map & Analyst Role
• System & Network Architecture Concepts
• Logging, Telemetry & the Standard Operating Environment
• Threat Intelligence: Sources, IOCs & TTPs
• Attack Frameworks: Kill Chain, Diamond & MITRE ATT&CK
• SIEM, Correlation & Detection Engineering
• Network Traffic & Packet Analysis
• Endpoint, Host & Email Analysis
• Malware Behaviour & Sandboxing
• Threat Hunting & Behavioural Analytics
• Domain 2: Vulnerability Scanning & Tooling
• CVE, CWE & Common Identifiers
• CVSS Scoring & Risk-Based Prioritisation
• Validation: False Positives & Negatives
• Web App & Cloud Vulnerabilities
• Remediation, Mitigation & Compensating Controls
• Domain 3: Incident-Response Lifecycle
• Containment, Eradication & Recovery in Depth
• Digital Forensics & Evidence Handling
• IR Governance: Plans, Playbooks & Coordination
• Domain 4: Reporting, Metrics & Communication
• Exam Strategy & Final Review

Learning objectives

• Map the four CySA+ CS0-003 domains and their exam weightings to plan a focused study path.
• Apply system and network security concepts and standard operating-environment telemetry to security operations.
• Use threat intelligence, the threat-hunting cycle and the MITRE ATT&CK framework to detect malicious activity.
• Analyse SIEM output, packet captures, endpoint and email artefacts to identify indicators of compromise.
• Identify common malware behaviours and use sandboxing and reverse-engineering basics for triage.
• Implement vulnerability scanning, validate findings and reduce false positives.
• Prioritise vulnerabilities using CVSS v3.x metrics, asset context and threat exposure.
• Recommend remediation, mitigation and compensating controls and track them to closure.
• Execute the incident-response lifecycle: preparation, detection, containment, eradication and recovery.
• Apply digital-forensics and evidence-handling principles, including chain of custody.
• Produce clear analyst reports, metrics and stakeholder communication that drive action.
• Pass a 45-question exam (80% to earn your certificate).