You're leading a blockchain project. How do you emphasize the significance of data privacy to stakeholders?

The target group for a blockchain-based project is important. Private users have different requirements than companies where compliance, different access levels and similar aspects play a role. You have to be able to demonstrate that you have considered all potential threats to data integrity which are relevant to the potential users/use cases.

There are a nice phrase "what gets on the internet stays there forever" that not really try for the internet as data can be deleted. This is true for a blockchain as blockchain most blockchain stored all data with details and not possible to remove it at all. So we should be really careful that we are pushing there and we should about any private or personal data to be stored onchain

Introduce stakeholders to essential privacy tools like zero-knowledge proofs (ZKPs) for secure transaction validation without exposing sensitive data. Highlight the importance of private or permissioned blockchains, limiting network access to authorized participants. Emphasize that these tools aren't mere additions but critical components woven into blockchain architecture. This approach ensures robust privacy protection, fostering trust and compliance amid evolving regulatory landscapes.

Privacy can be archived using modern mathematics (complex stuff but it works). And one of this tool called zero-knowledge proofs. Imagine you have a hidden picture in a magic box, and you want to show your friend that you have it without opening the box. You use a special trick that proves the picture is there, but your friend can't see the picture itself or know anything about it. This trick is like a zero-knowledge proof: you prove you know something without revealing the thing you know. This not the only one tools to use to save the privacy. But it most used one

Blockchain is good, but you live in a bureaucracy environment where everything is regulated. Sometimes law can ask you delete something in blockchain (that not possible but law creators do not care). Each country have own data privacy concept that should be followed whatever want you this or not And as we have a lot of countries and a lot of laws we should be flexible as much as possible to follow tre rules

The use of Blockchain can comply with data protection standards. However, it is important to understand that blockchain has a transnational application and each country has a specific data protection law. The principles of accountability and transparency provided for in standards such as GDPR and the Brazilian LGPD are in line with the operating premises of blockchain, but it is necessary to understand how data is treated and explain this operation.

No one want to have their privat date available to anyone. People love privacy. If you will push their private data on-chain that will not be happy, and or the most projects happy users is a goal.