How do most platforms handle personal information now? Toss it into a central database, and for the convenience of various systems, it has to be copied and synchronized continuously. How risky is this approach? Each time you copy, the chance of leakage doubles — the more places the data exists, the more opportunities hackers have.

Is there a smarter way? Zero-knowledge proof technology offers such an approach: no longer "hand over your data for us to store," but instead "I only need to verify whether a certain fact you claim is true." In this way, your sensitive information doesn't need to exist on the platform's servers at all, and the verification process doesn't rely on copies of PII in the database.

This paradigm shift is significant for identity verification and privacy protection, and it is also a key direction for Web3's pursuit of user sovereignty.