Which of the following terms refers to the protection of data against unauthorized access?

Integrity focuses on protecting data from unauthorized modification or destruction, ensuring its accuracy and completeness.

Recovery refers to the process of restoring data or systems after an incident, focusing on availability, not directly unauthorized access prevention.

Auditing involves reviewing logs and activities to detect security breaches or policy violations, rather than being the primary mechanism for preventing unauthorized access.

Confidentiality is specifically concerned with preventing unauthorized individuals or systems from accessing or disclosing sensitive information, thereby ensuring its privacy and secrecy.