Confidentiality

B.

Confidentiality is the opposite of disclosure.

Source: KRUTZ, Ronald L.

& VINES, Russel.

D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 59.

Confidentiality is one of the core principles of information security that ensures that sensitive information is only accessible to authorized individuals or entities. The opposite of confidentiality is disclosure, which means that sensitive information is revealed or shared with unauthorized individuals or entities. Therefore, the correct answer to the given question is option B, disclosure.

Option A, closure, is not the opposite of confidentiality as it does not relate to the concept of protecting sensitive information. Closure usually refers to the act of shutting down or terminating a system, application, or service.

Option C, disposal, is also not the opposite of confidentiality as it relates to the secure and appropriate disposal of sensitive information when it is no longer needed. Disposal may involve the physical destruction or deletion of the information.

Option D, disaster, is not the opposite of confidentiality as it does not relate to the concept of protecting sensitive information. Disaster refers to an unexpected event or occurrence that disrupts normal business operations and may cause significant damage or loss.

In summary, confidentiality is the protection of sensitive information from unauthorized disclosure, and the opposite of confidentiality is disclosure.