An Employee Non-Disclosure Agreement (NDA) is a legally binding contract between an employer and an employee in which the employee agrees not to disclose confidential information that the employer reveals in the course of their employment. This agreement is designed to protect the employer's trade secrets and other proprietary information from being shared with a third party. It can also be used to protect an employer from the unauthorized use of confidential information by a former employee. There are two types of Employee Non-Disclosure Agreements. The first type is the unilateral NDA. In this type of agreement, only the employee is bound to keep the information confidential. The second type is the mutual NDA. In this type of agreement, both the employer and the employee are expected to maintain the confidentiality of the information.