This chapter explains why zero knowledge is not marketing decoration for MindMapVault. It is a product boundary. It also explains the limits that come with that choice: no admin rescue, no silent recovery, and no backend access to your private thinking space.

Zero knowledge is often discussed like a technical badge.

For this product, it is more practical than that.

It answers a simple question: who is allowed to see the raw material of your thinking?

For MindMapVault , the answer is supposed to be very small by default: you, and only the people you deliberately share with.

That matters because a notes or mind-map vault is not just storage.…