A non-disclosure agreement (NDA) is a legal contract between two or more parties that outlines confidential material, knowledge, or information that the parties wish to share with one another for a number of purposes, but wish to restrict access to by third parties. It is a contract through which the parties agree not to disclose information or knowledge covered by the agreement. It aims to create a confidential relationship between the parties to protect any type of confidential and proprietary information or trade secrets