74%
Org Use Red Teams
91%
Have Blue Teams
63%
Now Use Purple
5x
ROI on Purple Team
Understanding Security Teams
The "team colors" represent different approaches to security testing and defense. Understanding when and how to use each team maximizes your security investment.
Security Team Spectrum
Phase 1
Red Team
Adversary simulation
Phase 2
Blue Team
Detection & defense
Phase 3
Purple Team
Collaborative improvement
Red Team: The Attackers
Red Team Focus
- Goal-based: Achieve specific objectives (steal data, gain domain admin)
- Realistic: Emulate real threat actors
- Stealth: Evade detection as adversaries do
Blue Team: The Defenders
Blue Team Focus
- Detect: Identify threats through monitoring
- Respond: Contain and remediate incidents
- Harden: Strengthen defenses continuously
Purple Team: The Collaborators
Purple Team Focus
- Collaborative: Red and Blue work together
- Iterative: Attack, detect, tune, repeat
- Knowledge transfer: Both teams learn from each other
Red Team Engagement
Goal-based objectives
Long duration (weeks)
Stealth required
Tests people & process
Business impact focus
Penetration Testing
Finding all vulnerabilities
Short duration (days)
No stealth
Technical only
Vulnerability focus
Team Capabilities
Security Team Functions
Red Team Activities
Adversary emulation
Social engineering
Physical intrusion
Goal-based testing
Blue Team Activities
SIEM monitoring
Threat hunting
Incident response
Security hardening
Purple Team Activities
Joint exercises
Detection tuning
Playbook validation
Knowledge transfer
When to Use
Red: Mature security
Blue: Always (core)
Purple: After incidents
All: Annually minimum
Best Practice
Purple Team exercises deliver 5x more value than separate Red/Blue activities. Immediate feedback loops accelerate improvement.
Conclusion
Most organizations need all three team types, but the approach depends on maturity. Start with Blue, add point-in-time Red testing, and evolve to continuous Purple teaming for maximum effectiveness.
Tags
#Red Team#Blue Team#Purple Team#Security Testing#SOC
A
Written by
Asfaleia Team
Chief Security Researcher
Offensive security specialist experienced in Red Team operations and Purple Team exercises.