S.D. Codified Laws § 51A-19-4 (2026)
A financial institution or an employee of a financial institution may notify any third party reasonably associated with a consenting, senior, or vulnerable adult, if the institution or employee reasonably believes that financial exploitation of the adult may have occurred, may have been attempted, is occurring, or is being attempted. A financial institution or an employee of a financial institution may choose not to notify any third party reasonably associated with a consenting, senior, or vulnerable adult of suspected financial exploitation of the adult, if the institution or employee reasonably believes the third party is, may be, or may have been engaged in the financial exploitation of the adult, or if requested to refrain from making a notification by a law enforcement agency on the grounds that the notification could interfere with a law enforcement investigation. For purposes of this section, a third party reasonably associated with a consenting, senior, or vulnerable adult means:
Source: SL 2026, ch 194 , § 4.