What is the primary function of a Purple Teamer in optimizing security controls?

Explicitly requiring deep understanding of both offensive (Red) and defensive (Blue) practices

The Purple Teamer role represents a crucial integration point between offensive testing and defensive monitoring. This role is specifically designed to bridge the gap between the Red Team's attack simulations and the Blue Team's detection capabilities. By requiring deep expertise in both offensive tactics and defensive security controls, the Purple Teamer can collaboratively optimize detection engineering. Their insights ensure that the defenses implemented by the Blue Team are genuinely effective against the specific techniques being used by adversaries or simulated by the Red Team, fostering a continuous feedback loop for security improvement.