Why Purple Teaming
Bridging red and blue for better defense.
What Purple Teaming Is
Purple teaming is a collaborative security practice where offensive (red) and defensive (blue) functions work together in the same loop instead of in isolation.
The goal is not to 'win' against each other, but to jointly improve detection and response. The red side emulates real adversary behavior; the blue side validates whether they can see and stop it; both refine controls together.
- Red brings attacker tradecraft and emulation
- Blue brings telemetry, detections, and response
- Purple is the feedback loop between them
The Problem With Siloed Teams
Traditional red team engagements often end with a report that lands months later. The blue team learns what was missed only after the fact, with little context on the exact technique or telemetry involved.
This creates slow, expensive feedback. A finding like Domain admin compromised in 3 days tells you that you lost, but not which detection should have fired.
- Red findings arrive late and lack detection detail
- Blue cannot reproduce the attack to tune rules
- The same gaps reappear in the next engagement