One way to think about it: Bitcoin removes trusted third parties. But it also removes "privacy by default". Everything is transparent unless you actively design against it. Tools like zpubs are useful. But they are also dangerous if misunderstood. This is why security is not just cryptography. It's architecture + behavior + information exposure. More here → https://blog.bitvault.sv/from-a-zpub-to-your-private-key-the-hidden-risk-most-people-miss/