A confidentiality agreement, also known as a confidentiality agreement, confidentiality agreement, protected information agreement, or confidentiality agreement, is a legal contract between at least two parties that describes confidential documents, knowledge or information that the parties wish to share for specific purposes, but who wish to restrict access to or by third parties. This is a contract by which the parties agree not to disclose information covered by the agreement. An NDA creates a confidential relationship between the parties in order to protect any type of confidential and proprietary information or trade secrets. Therefore, an NDA protects non-public business information. DDNs are often signed when two companies, individuals or other companies are considering doing business and need to understand the processes used in the other`s business to assess the potential business relationship. DDAs may be “reciprocal”, meaning that both parties are limited in their use of the materials supplied, or may restrict the use of materials by a single party. It is also possible for an employee to sign an NDA or NDA-type agreement with an employer. In fact, some employment contracts will contain a clause that will limit employees` use and dissemination of “confidential information” belonging to the company.