Gray Hat Hacking The Ethical Hacker's Handbook, Fifth Edition, 5th Edition

CHAPTER 8

Purple Teaming

If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle.

Sun Tzu, The Art of War¹

Purple teaming may be the absolute most valuable thing an organization can do to mature its security posture. It allows the defensive security team, your blue team, and your offensive security team, your red team, to collaborate and work together. This attack and defense collaboration creates a powerful cycle of continuous improvement. Purple teaming is like sparring with a partner instead of shadowboxing. The refinement of the skills ...