Application Security: What is CIA?


Been a long time I wrote anything in this blog. I am preparing for my CISSP examination and thought that I will share some notes here.

CIA forms the fundamental triad of information security and stands for CONFIDENTIALITY, INTEGRITY and AVAILABILITY.

What is Confidentiality? Any item of importance for an individual/organization (also called an asset) should not be disclosed to anyone who has not be granted explicit rights to it.

What is Integrity? Assurance that the data is free of unauthorized manipulation.

What is Availability? All data and services should be available to the legitimate users each time they need.

Anything and everything we do in information security are always directed towards ensuring that the triad is maintained.

Loss of any one of the three may have extreme legal/reputational impact on the organization/individual.

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