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Blue Team
The defensive security team responsible for maintaining security posture, detecting threats, and responding to incidents.
What is a Blue Team?
A blue team is the defensive security group responsible for protecting an organization's assets, detecting threats, and responding to security incidents. Blue teams maintain security controls, monitor for attacks, and work to improve the organization's overall security posture.
Blue Team Responsibilities
- Prevention: Implement and maintain security controls
- Detection: Monitor for threats and anomalies
- Response: Investigate and contain incidents
- Recovery: Restore systems after incidents
- Improvement: Learn from incidents and strengthen defenses
Blue Team Activities
- Security monitoring (SIEM, EDR)
- Vulnerability management
- Incident response
- Threat hunting
- Security awareness training
- Policy development and enforcement
- Forensic analysis
Blue Team Tools
- SIEM platforms
- Endpoint Detection and Response (EDR)
- Network monitoring tools
- Vulnerability scanners
- Forensic analysis tools
- Threat intelligence platforms
Blue vs. Red vs. Purple
- Red Team: Offense (attackers)
- Blue Team: Defense (defenders)
- Purple Team: Collaboration between red and blue to improve both