The Purple Book on Cyber Security

The Purple Book on Cyber Security is built for the people in the middle: Sales, Pre-sales, and Delivery teams who need to speak security clearly, scope it correctly, and run it reliably.

What makes it different:
🟣 Beginner-friendly, practical structure

Each topic is organized as:
✅ Basics (what it is + why it matters)
✅ Sales cues (questions to ask, objections you’ll hear)
✅ Pre-sales cues (sizing, integrations, implementation steps, what can go wrong)
✅ Delivery cues (daily/weekly/monthly ops, L1/L2/L3 responsibilities, reporting & governance)

🧠 It also clarifies the foundations:
Cybersecurity vs Information Security (and why InfoSec = Cyber + Physical)
Why “Purple” matters: bridging offense (red) + defense (blue) through collaboration (Purple Teaming)

If you work with customers and you want to:
✅ qualify better
✅ avoid scope surprises
✅ speak security without overpromising
✅ deliver repeatable outcomes

#book