Is it illegal to expose the owner's name privately?

Legal analysis: the property has no right to disclose the owner's identity information privately. If the owner's information is leaked by the property, you can complain to the property office of the Housing and Construction Bureau.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 102 A natural person enjoys the right to his name, and has the right to decide, use, change or allow others to use his name according to law, provided that it does not violate public order and good customs.

Article 1032 Natural persons have the right to privacy. No organization or individual may infringe upon the privacy rights of others by spying, harassing, exposing or making public. Privacy is the private space, private activities and private information that natural people live in peace and don't want to be known by others.