There are mainly three major reasons for which CYBER security works: 

Confidentiality: WHENEVER information is transmitted from one place to another, a certain level of secrecy is MAINTAINED, which is known as confidentiality.

Integrity: This MEANS that whenever there is a need for change in any document stored beforehand or new, it can only be done by an authorised person with proper and secure mechanism. 

Availability: Everything that is important should be readily available to the AUTHORIZED people otherwise there will be no use of such information that is not available.

There are mainly three major reasons for which cyber security works: 

Confidentiality: Whenever information is transmitted from one place to another, a certain level of secrecy is maintained, which is known as confidentiality.

Integrity: This means that whenever there is a need for change in any document stored beforehand or new, it can only be done by an authorised person with proper and secure mechanism. 

Availability: Everything that is important should be readily available to the authorized people otherwise there will be no use of such information that is not available.