The CIA Triad is the foundation of information security, consisting of three core principles:
Confidentiality: Ensuring information is accessible only to authorized individuals. This prevents unauthorized disclosure of sensitive data through encryption, access controls, and proper authentication.
Integrity: Maintaining the accuracy and completeness of data throughout its lifecycle. This ensures data hasn't been tampered with or corrupted, using techniques like checksums, digital signatures, and version controls.
Availability: Ensuring systems and data are accessible when needed by authorized users. This involves preventing denial-of-service attacks, maintaining redundancy, and having disaster recovery plans.
These principles guide security decisions and help organizations prioritize protection measures. For example, a banking system needs high confidentiality for account data, integrity for transaction records, and availability for customer access.
Rewriting in plainer words…
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