What is the term for unauthorized disclosure of information in the context of confidentiality?

• A. A data breach
• B. An information leak
• C. A loss of confidentiality
• D. A security incident

Answer: (C)

The term that best describes the unauthorized disclosure of information in the context of confidentiality is a loss of confidentiality. This concept refers specifically to situations where private or sensitive information is disclosed without proper authorization, thus undermining the confidentiality agreements and protections in place. It highlights the failure to protect information from being accessed by unauthorized individuals.

While the other options relate to security issues, they do not focus exclusively on the breach of confidentiality. A data breach generally encompasses incidents where sensitive data is accessed or acquired illegitimately, but may include a wider range of scenarios beyond just unauthorized disclosure. An information leak typically implies that information has been released to the public without approval but may not fully capture the nuance of confidentiality violations. A security incident is a broader term that can refer to any event that compromises the integrity, availability, or confidentiality of data, which includes but is not limited to unauthorized disclosures.

Thus, a loss of confidentiality precisely aligns with the notion of unauthorized disclosure, making it the most accurate term in this context.