Many people find it difficult to understand the meanings of Confidentiality, Integrity and Availability (CIA) Triad. However, these principles and very important because they are fundamental to the protection of information, data, systems, and networks. Whether you are encrypting data at rest or in transit, controlling in-bound and out-bound to you and from your Local Area Network (LAN) using firewalls, implementing restrictions on who can modify data your are employing these principles.