A Non-Disclosure Agreement (NDA) is a legally binding contract between two or more parties (disclosing party and receiving party) in which confidential information is shared for a specific purpose, such as obtaining a license or to conduct business. It is designed to protect any type of confidential information, such as trade secrets, inventions, processes, data, designs, and other proprietary information. The purpose of the NDA is to ensure that the confidential information is not disclosed to third parties outside the agreement. There are two types of Non-Disclosure Agreements: unilateral and mutual. A unilateral NDA is one-sided and binds only the disclosing party to the agreement. A mutual NDA is a two-way agreement and binds both disclosing and receiving parties to the agreement.