Is there any harm in Baidu search authentication?

Baidu has verified the identity of the search on this topic, which is in danger of revealing identity information.

In official website, it is not a big problem for well-known websites to do real-name authentication, because the platform has its own confidentiality agreement.

However, it is very dangerous to do real-name authentication on fake websites and personal stations, because real-name authentication requires ID cards. If it is leaked, it will reveal the ID number, telephone number and name, which is likely to be taken to an informal lending institution by criminals.