There are three main key concepts that are taught in Information Security Training. These are confidentiality, integrity and availability and are termed the CIA triad.
Confidentiality: Information must be kept private and secure. Information systems are designed to encrypt all information and data, making it confidential. The system also control access to the storage banks and restricts its appearance in certain areas.
Integrity: Data is not altered in any way. When data is transmitted, it is ciphered. However, the ciphers may be tampered with as the data is in transit.
Availability: the information systems have to function properly in order for information to be made available when it is required.
Although, there are other concepts, the CIA triad is the basic principles on which Information Security Training is based.
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