Recently, while researching the privacy track, I revisited @MidnightNetwork . When many people mention blockchain, they think of 'open and transparent', but the reality is that if all data is completely open, many real-world applications cannot actually be put on the chain. For example, corporate business data, personal identity information, and even some financial transaction details, if fully exposed on the chain, pose very high risks.
This is also why zero-knowledge proof (ZK) technology has received increasing attention in recent years. Simply put, it means that one can prove something is true without exposing specific data. It ensures the credibility of the chain while protecting the privacy of the data itself.