38Which file action implements the principle of confidentiality from the CIA triad? Hash Backup Compression Encryption

The file action that implements the principle of confidentiality from the CIA triad is Encryption.

Here's why:

1. The CIA triad stands for Confidentiality, Integrity, and Availability. It's a model designed to guide policies for information security within an organization.

2. Confidentiality refers to preventing the disclosure of information to unauthorized individuals or systems. In the context of file actions, this is best achieved through encryption.

3. Encryption is the process of converting information or data into a code, especially to prevent unauthorized access. This aligns directly with the principle of confidentiality, as it ensures that only those who have the correct decryption key can access the original information.

4. While Hash, Backup, and Compression are also file actions, they do not primarily serve the purpose of maintaining confidentiality. Hashing is used for verifying integrity, backups are for ensuring availability, and compression is for reducing storage space, none of which directly maintain confidentiality like encryption does.