CIA Triad

The CIA Triad is a fundamental information security model comprising three core principles: Confidentiality, Integrity and Availability. Confidentiality ensures that information can only be accessed by authorised users and systems. Integrity protects data against unauthorised or unintended modification. Availability ensures that data, applications and IT systems remain accessible and operational when required. Organisations use these three principles as a foundation for planning and assessing IT security measures. Typical measures include access controls, encryption, backups, redundant systems and network and cybersecurity solutions. The CIA Triad therefore provides a structured framework for protecting business data, information systems and IT infrastructures.