Summary
In this chapter, we saw that purple teaming is a process that can be applied in different kinds of assessments; nevertheless, we strongly believe that purple teaming is also a mindset that must be incorporated into an organization's culture. Purple teaming exercises help to build human cross-collaboration between red and blue teams. This is exactly what purple teaming enables within an organization – a common and shared objective: improving the organization's security. After all that, does this mean that red teaming exercises don't make sense anymore? Not at all – they do serve a purpose to test responsive capabilities in a realistic scenario where the blue team is not informed, and the red team performs actions with stealth in mind.
In the next chapter, we will introduce CTI and what it implies, as well as defining how it should be leveraged as an input for purple teaming.