305 ILCS 5/10-24.50

A financial institution that provides information under Sections 10-24 through 10-24.50 shall not be liable to any account holder, owner, or other person in any civil, criminal, or administrative action for any of the following: (1) Disclosing the required information to the Illinois Department, any other provisions of the law notwithstanding. (2) Holding, encumbering, or surrendering any of an individual's accounts as defined in Section 10-24 in response to a lien or order to withhold and deliver issued by: (A) the Illinois Department under Sections 10-25 and 10-25.5; or (B) a person or entity acting on behalf of the Illinois Department. (3) Any other action taken or omission made in good faith to comply with Sections 10-24 through 10-24.50, including individual or mechanical errors, provided that the action or omission does not constitute gross negligence or willful misconduct.