Question

In the context of data security, what does “Integrity” refer to ?

• A. Ensuring that data is accessible only to authorized individuals
• B. Granting appropriate access permissions to users
• C. Ensuring the accuracy, completeness, and reliability of data
• D. Encoding data so it can only be read by authorized parties

Hint:

To remember this concept: Confidentiality prevents unauthorized reading; Integrity prevents unauthorized writing (modification); Availability ensures authorized access.

Answer 1

The Correct Option is C

Step 1: Understanding the CIA Triad of Security:
The CIA Triad (Confidentiality, Integrity, and Availability) is the foundational model designed to guide data security policies within organizations:

Step 2: Explaining the Pillars:

• Confidentiality: Restricting data access to prevent sensitive information from reaching unauthorized users. This is typically managed via encryption (D) and user access controls (A, B).
• Integrity: Protecting data from unauthorized deletion, tampering, or alteration during transit and storage. This ensures the information remains accurate, complete, and reliable (C). It is enforced using cryptographic checksums, digital signatures, and version controls.
• Availability: Ensuring that authorized users have reliable, uninterrupted access to the data when needed.

Step 3: Matching Definitions:
Option (C) is the precise definition of data integrity.