The specific contact information for an individual, particularly a phone number, is generally considered private data. Disclosing such details without consent can raise ethical concerns and potentially violate privacy laws.
The importance of protecting personal information stems from the potential for misuse, including identity theft, unwanted solicitation, and harassment. Respecting an individual’s right to privacy fosters trust and maintains professional boundaries. The history of privacy law demonstrates an increasing awareness of the need to safeguard personal data in the digital age.