3_Information_security_didactic_1_v2

Confidentiality of information is a requirement for a person who has received access to any information not to transfer this information to third parties without the consent of its owner. The very word "Confidentiality" comes from the English "confidence", in translation it means "trust." It is precisely because the confidentiality of information is respected that a person, having entrusted his personal data to state bodies, can be sure that they will not fall into the wrong hands and will not be used against him. Also, the confidentiality of information is of great importance while maintaining state and commercial secrets.

Confidentiality is a guarantee that information can be read and interpreted only by people and processes that are authorized to do so. Ensuring confidentiality includes procedures and measures preventing disclosure by unauthorized users. Information that may be considered confidential is also called sensitive. An example would be a mail message that is protected from being read by anyone other than the addressee.

Confidentiality is a property of information that ensures that only certain persons have access to information.

For example. The company "Mercury" has information, namely the sales report. Access is available only to employees of the sales and accounting department. Moreover, the staff of the sales department have all the information (it will be described in more detail below), and the accounting department only for the final calculations (in order to calculate sales taxes.).

Thus, confidentiality means not only access to information, but also the delimitation of access to information, then Petrov has access to one piece of information, Serikov to the second, and Ismailov to all the information.