Data classified as 'Public' can be disclosed without concern for harm since it is not sensitive and does not require protection for confidentiality. Disclosure of this data carries no risk and does not necessitate strict access controls. Conversely, 'Confidential' data could cause damage or unwanted consequences if disclosed, thus requiring measures to ensure its confidentiality. 'Sensitive' data can lead to adverse effects for individuals or the organization if improperly disclosed, demanding protections. 'Private' data is related to individual privacy and may be subject to legal protections, thus not intended for public access.