Wis. Stat. § 409.342: Bank’s right to refuse to enter into or disclose existence of control agreement.

This chapter does not require a bank to enter into an agreement of the kind described in s. 409.104 (1) (b), even if its customer so requests or directs. A bank that has entered into such an agreement is not required to confirm the existence of the agreement to another person unless requested to do so by its customer.