How secure is the implementation of backups?

Question

bash

Good day.
We copy database backups to Yandex disk using the following script

curl -k -u my_login:my_password -T $full_file_name $remote_path_full_backup

we were embarrassed by the fact that the login and password were entered explicitly in the file. So we did it a little differently.

curl -k --netrc-file .netrc -T $full_file_name $remote_path_full_backup

specifying the login, host, password in the rc file.
We are concerned about the security of the connection and the transfer of data to curl for authorization.
For example, if packets are intercepted, will they be able to recognize the login / password or other parties.
Please tell me how to transfer files correctly.
Thanks in advance.

Answer 1

Briefly said in a comment to the question above.
More details here:
https://access.redhat.com/documentation/en-US/Red_...