A corporate fiduciary may not disclose to any person, except to the customer or the customer's duly authorized agent, any records pertaining to the fiduciary relationship between the corporate fiduciary and the customer unless:
For purposes of this Section, "customer" means the person or individual who contracted to establish the fiduciary relationship or who executed any instrument or document from which the fiduciary relationship was established, a person authorized by the customer to provide such direction or, if the instrument, law, or court order so permits, the beneficiaries of the fiduciary relationship.
205 ILCS 620/5-10.5