Which of the following is considered private data in your work?

Choosing a diagnosis that a person has as private data is accurate because it contains sensitive medical information that is protected under various regulations and privacy laws, such as HIPAA in the United States. This type of data can reveal personal health conditions and details that are vital for confidentiality and could potentially lead to discrimination or stigmatization if disclosed without consent. In a professional setting, such health-related information must be guarded carefully to respect the individual's privacy and to comply with legal standards regarding patient confidentiality.

On the other hand, personal opinions, general information about services, and public data do not fall under the same level of privacy concern. Personal opinions are subjective and can vary from person to person, while general information about services is typically meant for public knowledge and does not disclose any identifiable personal data. Data classified as public is already accessible to anyone and therefore does not require the same level of protection as private data.