Nowadays blockchains treat privacy like it's just an extra. Just an additional feature. Everything is visible and public. This architecture works for systems where public transparency is the end goal. But what happens when you begin to handle big data, medical records or sensitive information? It collapses. Full transparency and accountability is not a feature in these contexts, it's a problem. Table of contents How does Midnight solve this problem? Understanding the privacy model Using disclose() correctly Placing disclose() at the right scope Disclosure through conditional expressions What's safe to disclose vs what leaks privacy Safe to disclose What actually leaks privacy? Applying domain-separated hashing for cross-property unlinkability How does this relate to Compact? The round counter and linkability Running a privacy audit on your contract Conclusion Prerequisites This is an intermediate tutorial.…