Sensitive data –applies to information that requires special precautions to assure the integrity of the information, protecting it from unauthorized modification or deletion. It is data that requires a higher than normal assurance of accuracy and completeness e.g. passwords, on encryption parameters.
Confidential data –applies to the most sensitive business information that is intended for strict use within and organization. Its unauthorized disclosure could seriously and adversely impact the organizations image in the eyes of the public e.g. application program same code. Project documentation etc.
Private data –applies to personal data intended for use within the organization. Its unauthorized disclosure could seriously and adversely impact the organization and/or its customers e.g. customers account data, e-mail messages etc.
Public Data –applies to data that can be assessed the public but can be updated/deleted authorized people only eg company web pages, monetary transaction limit data.