What is the main focus of data confidentiality measures?

The main focus of data confidentiality measures is to ensure that sensitive information is protected from unauthorized access. This is critical in any organization that handles personal, financial, or any other sensitive data. Data confidentiality measures, such as encryption, access controls, and user authentication, are implemented to ensure that only authorized personnel can access or view certain data.

By prioritizing data confidentiality, organizations can mitigate the risk of data breaches and maintain user trust, compliance with regulations, and the integrity of their systems. The other options involve aspects of data management and performance but do not directly address the protection of sensitive information from unauthorized access, which is the cornerstone of data confidentiality.