This is an agreement that is used to protect the disclosure of information that a party deems confidential or proprietary. NDAs can prohibit employees from disclosing specific confidential information that the employees learn or have access to during their employment.Download a free Illinois nondisclosure agreement template here to ensure your document fully complies with the state's legal requirements. Whether you are an employer or employee, we can assist you with non-disclosure agreements in Deerfield. Call us today for a consultation. The document you are looking for is a non-disclosure agreement or a confidentiality agreement in Illinois. The purpose of a non-disclosure agreement is twofold: confidentiality and protection. Disclosure Agreement (NDA), also referred to as a confidentiality agreement, serves as a legally binding contract between two parties. Someone must witness it. Any therapist or other person having your records must not disclose your records once you have revoked the consent.