Wis. Stat. § 648.30: Nondisclosure of information.

(1) Types of information. The office may refuse to disclose and may prevent any other person from disclosing any of the following:

(a) Testimony, reports, records, and information that are obtained, produced, or created in the course of an inquiry under s. 648.15.

(b) Testimony, reports, records, and information that are obtained, produced, or created in the course of an examination under s. 648.20.

(c) Testimony, reports, records, communications, and information that are obtained by the office from, or provided by the office to, any of the following, under a pledge of confidentiality or for the purpose of assisting or participating in monitoring activities or in the conduct of any inquiry, investigation, or examination:

1. The National Association of Insurance Commissioners.

2. An agent or employee of the National Association of Insurance Commissioners.

3. The insurance commissioner of another state.

4. An agent or employee of the insurance commissioner of another state.

5. An international, federal, state, or local regulatory or law enforcement agency, including the department.

6. An agent or employee of an agency described in subd. 5.

(2) Waiver and applicability of the privilege. Section 601.465 (2m) (a) to (d) applies to the privilege under sub. (1).