Which feature allows users to confirm file transfers, enhancing data security?

The feature that enhances data security by allowing users to confirm file transfers is the one that states "Allow transfer if user confirms." This function acts as an additional layer of security by requiring user interaction before any data transfer is completed. This confirmation step helps prevent accidental or unauthorized transfers, ensuring that users are aware of what files are being shared and with whom.

This feature is particularly important in environments where sensitive information is handled, as it mitigates the risk of data leaks or unintentional sharing. By implementing this confirmation, organizations can have better control over their data, making it harder for malicious activities to take place without user knowledge or consent. The requirement for user confirmation adds a crucial step in the data transfer process, enhancing overall security measures in place.

Other options relate to file transfer permissions and control, but they do not include the essential aspect of user confirmation, which is key to enhancing data security.