The Parkerian Hexad expands on the CIA triad by including which additional principles?

The Parkerian Hexad indeed expands upon the CIA triad—which includes Confidentiality, Integrity, and Availability—by introducing three additional principles: Possession, Authenticity, and Utility.

Possession refers to the physical or logical control of data; it emphasizes that ownership is vital for safeguarding information. Authenticity speaks to the legitimacy of the information, ensuring that data is originally derived from the claimed source, which is essential for trust in information systems. Utility relates to the usefulness of the information, highlighting that data must not only be accessible but also relevant and actionable for it to be valuable.

This expanded model provides a more comprehensive view of information security, reflecting the multifaceted nature of data protection and the importance of considering various aspects beyond just the basic three. Understanding these additional principles allows organizations to better assess risks and implement effective security measures to safeguard their information assets.