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Describe the CIA Triad in Cyber Security?

The CIA Triad, Confidentiality, Integrity, and Availability, is the foundational model that most security controls are designed to protect.

PrincipleWhat it protects against
ConfidentialityUnauthorized disclosure of information, enforced through encryption and access controls
IntegrityUnauthorized modification of data, enforced through hashing and checksums
AvailabilityDisruption of access to systems, enforced through redundancy and DDoS protection

Every security decision, from choosing an encryption algorithm to designing a backup strategy, ultimately maps back to protecting one or more of these three properties.

Which CIA Triad principle is protected mainly through encryption?
Which principle is enforced through redundancy?

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