Is the statement true or false: The most secure way to permit a file is by hash?

The statement is true because allowing access to a file based on its hash value is one of the most secure methods of file permission management. A hash is a unique digital fingerprint of a file generated by a cryptographic algorithm. When a file is permitted by its hash, the system can accurately identify and grant access only to that specific version of the file.

This method significantly reduces the risk of malicious code or unauthorized alterations, as any changes to the file would result in a completely different hash value. Therefore, only the file with the exact matching hash will be permitted, ensuring that file integrity and authenticity are maintained.

In contrast to other methods such as user permissions, which may still allow access to compromised files if a user’s account is exploited, granting access based on hash offers a more robust and tamper-proof approach.