In cyber security we concern on 3 major topics. (CIA)
- Confidentiality
- Integrity
- Availability
Confidentiality
Simply it is the privacy of the message. When a massage is sent through the wire less communication media there can be intruder who looks in to the content of the massage. Then the content is exposed to a that third party person. Confidentiality means we should be able to ensure that the content of the message is only known to the sender and the receiver.
Integrity
If the integrity is there in a message, that means no one has modified the message during the transition. there are several methods like Hashing to ensure the integrity of the message.
Availability
Availability is a main concern of a website or a database. A web site or a database is should be able access to any time. Because the intruder has the ability to down the database or the server on which the site is hosted.
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