What is a Blue Team?
A Blue Team consists of security professionals who defend an organization's information systems against attacks. They work to detect, prevent, and respond to security threats, often in opposition to Red Teams who simulate attacks.
Blue Team Responsibilities
Prevention
- Implement security controls
- Configure firewalls and IDS/IPS
- Patch management
- Security hardening
Detection
- Monitor security events
- Analyze logs and alerts
- Threat hunting
- Anomaly detection
Response
- Incident response
- Containment and eradication
- Recovery operations
- Forensic analysis
Improvement
- Security assessments
- Control optimization
- Process improvement
- Lessons learned
Key Skills
Technical
- Network security
- SIEM operations
- Forensic analysis
- Malware analysis
Analytical
- Threat intelligence
- Pattern recognition
- Risk assessment
- Root cause analysis
Blue Team Tools
- SIEM platforms
- EDR/XDR solutions
- Network monitoring
- Forensic tools
- Vulnerability scanners
Team Color Framework
- Red Team: Attackers
- Blue Team: Defenders
- Purple Team: Collaboration
- White Team: Facilitators