What are confidentiality, non-disclosure and non-circumvention agreements?

A confidentiality agreement, sometimes referred to as a non-disclosure agreement (NDA), a confidential disclosure agreement, proprietary information agreement, or secrecy agreement, is a legal contract between at two parties that outlines confidential material, knowledge, or information that the parties will share with each other for certain purposes, but wish to restrict disclosure thereof to third parties. The parties agree not to disclose information thereby creating a confidential relationship between the parties to protect any type of confidential and proprietary information or trade secrets and non-public business information.

A non-circumvention agreement is a contract whereby the parties, usually during the existence of a non-disclosure agreement relating to negotiations, agree not to enter into similar negotiations with third parties or to do anything that may circumvent the other party, thereby frustrating its right and negating the purpose of the negotiations.