Some of them include: confidentiality agreements are inherently strict and are subject to far fewer court decisions. Where a party is unable to prove that it has knowledge of confidential information from an external source, the confidentiality agreement is generally enforced by the courts. Most of the time, there are two types of NDAs: one the other and not the other. A non-reciprocal agreement or unilateral agreement is usually used when a single party/page would share confidential information with its counterpart, so that only one signatory to the agreement would be needed.. . . .