You are responsible for network and information security at a metropolitan police station. The most important concern is that unauthorized parties are not able to access data. What is this called?

Confidentiality ensures that information is accessible only to those authorized to have access, directly addressing the concern of preventing unauthorized parties from accessing data.

Availability ensures that authorized users have timely and uninterrupted access to information and systems, which is different from preventing unauthorized access.

Integrity ensures that data is accurate, complete, and protected from unauthorized modification or destruction, which focuses on data correctness rather than access control.

Encryption is a method or tool used to achieve confidentiality, but it is not the overarching principle itself.