Non-disclosure agreement

A Non-disclosure agreement (NDA), also known as a confidentiality agreement (CA), confidential disclosure agreement (CDA), proprietary information agreement (PIA), or secrecy agreement (SA), is a legal contract between at least two parties that outlines confidential material, knowledge, or information that the parties wish to share with one another for certain purposes, but wish to restrict access to or by third parties. It is a contract through which the parties agree not to disclose information covered by the agreement. An NDA creates a confidential relationship between the parties to protect any type of confidential and proprietary information or trade secrets. As such, an NDA protects non-public business information.

NDAs are commonly signed when two companies, individuals, or other entities (such as partnerships, societies, etc.) are considering doing business and need to understand the processes used in each other's business for the purpose of evaluating the potential business relationship. NDAs can be "mutual", meaning both parties are restricted in their use of the materials provided, or they can restrict the use of material by a single party.

It is also possible for an employee to sign an NDA or NDA-like agreement with an employer. In fact, some employment agreements will include a clause restricting employees' use and dissemination of company-owned confidential information.

A non-disclosure agreement (NDA) may be classified as unilateral, bilateral, or multilateral:

A unilateral NDA (sometimes referred to as a one-way NDA) involves two parties where only one party (i.e., the disclosing party) anticipates disclosing certain information to the other party (i.e., the receiving party) and requires that the information be protected from further disclosure for some reason (e.g., maintaining the secrecy necessary to satisfy patent laws or legal protection for trade secrets, limiting disclosure of information prior to issuing a press release for a major announcement, or simply ensuring that a receiving party does not use or disclose information without compensating the disclosing party).

A bilateral NDA (sometimes referred to as a mutual NDA or a two-way NDA) involves two parties where both parties anticipate disclosing information to one another that each intends to protect from further disclosure. This type of NDA is common when businesses are considering some kind of joint venture or merger.

When presented with a unilateral NDA, some parties may insist upon a bilateral NDA, even though they anticipate that only one of the parties will disclose information under the NDA. This approach is intended to incentivize the drafter to make the provisions in the NDA more "fair and balanced" by introducing the possibility that a receiving party could later become a disclosing party or vice versa, which is not an entirely uncommon occurrence.

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