Is it illegal for property staff to disclose owner information?

According to Article 5 of People's Republic of China (PRC) Property Law

The types and contents of real rights are prescribed by law.

Article 6

The establishment, alteration, transfer and extinction of the real right of immovable property shall be registered according to law. The establishment and transfer of the real right of movable property shall be delivered according to law.

Article 7

The acquisition and exercise of real rights shall abide by the law and respect social morality, and shall not harm the public interests or the legitimate rights and interests of others.

Article 8

Where other relevant laws have special provisions on property rights, those provisions shall prevail.

Extended data

According to Article 12 of People's Republic of China (PRC) Property Law

The registration authority shall perform the following duties:

(1) Examining the ownership certificate and other necessary materials provided by the applicant;

(two) ask the applicant about the registration matters;

(three) truthfully and timely registration of related matters;

(4) Other duties as prescribed by laws and administrative regulations.

If the relevant information of the real estate applied for registration needs further proof, the registration agency may require the applicant to supplement the materials, and may inspect it on the spot if necessary.

Thirteenth registration agencies shall not have the following acts:

(1) Requiring real estate appraisal;

(two) repeated registration in the name of annual inspection;

(three) other acts beyond the scope of registration duties.

Refer to Baidu Encyclopedia-Property Law of People's Republic of China (PRC) and China