Confidentiality and transparency are both required in professional company; list 5 areas confidentiality is a must to use?

Areas where confidentiality is a must are:1.
Compensation and remuneration department2.
Client's financial position (specially in banks, insurance companies, investment companies, stock brokers,etc)3.
Patient personal data are to be kept confidential by doctors, clinics, hospitals, pharmacies,etc)4.
Customers (in hotels, airports, travel agencies, etc)5.
Revenue and Tax authorities.
I hope i have answered the question.

The ethical duty of confidentiality refers to the obligation of an individual or organization to safeguard entrusted information.
The ethical duty of confidentiality includes obligations to protect information from unauthorized access, use, disclosure, modification, loss or theft.
Fulfilling the ethical duty of confidentiality is essential to the trust relationship between researcher and participant, and to the integrity of the research project.
And to add on protecting credit information as well as medical history.

Statistical indicators provide an overview of the social, demographic and economic structure of society.
Moreover, these indicators facilitate comparisons between countries and regions.
Population, gender, employment, economy, trade, environment, energy are the areas personal company must see.