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What is the CIA Triad?

By Sai Rohith Karanam
     
      crux points:
  1. Full form of CIA - Confidentiality, Integrity and Availability.
  2. These three key principles are the foundation for what's widely referred to as 'CIA Triad'.
  3. CIA triad is a guiding model for designing information security policies.
Now, let's discuss the terms Confidentiality, Integrity and Availability in detail.
  1. Confidentiality means keeping things hidden.
    In terms of security, keeping the data that you have hidden safely from unwanted eyes.
    Example: Password protection that we use to prevent unauthorized access.
  2. Integrity means keeping the data accurate and untampered with.
    In simpler terms, data sent by the source = data received by the destination.
    We mostly use the CRC mechanism to check whether data has tampered or not.
    Example: When you want to download a file of 5 MB, you are able to download only 5 MB, not more than that or less than that. This means data sent is equal to the data received.
  3. Availability means the information we have, should be readily accessible to the right people.
Keep in mind that security attacks are designed to steal all kind of data from you like time, material things and even your dignity.
As a security administrator, you should be able to design security policies which meet the criteria of CIA triad.

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