Some poorly crafted confidentiality agreements give only one of these periods. Even if both periods are indicated, it is important to ensure that a starting point is defined for the period during which the confidentiality of the information will be respected. If this starting point is not defined, problems may occur later. For example, imagine a confidentiality agreement stipulating that the disclosure will take place over a period of two years and that the information must remain confidential for three years. No starting point is indicated for the notion of confidentiality.