Purple teaming bridges the gap between Red Team (offensive simulation) and Blue Team (defensive monitoring). The architect establishes a continuous validation program: attack techniques are regularly emulated (using tools like Atomic Red Team, CALDERA, or Breach and Attack Simulation platforms), and the results are checked against Splunk to confirm detections fire as expected.
The output of purple team exercises feeds directly into the detection engineering backlog. Techniques that evade detection become the next sprint's priority. This creates a continuous improvement cycle driven by real-world adversary simulations rather than theoretical threat models.