Before uploading, use a tool like 7-Zip or WinRAR . Choose the "Encrypt file names" option and set a strong password. This adds a second layer of security regardless of the transfer service used.
"GV, we have a problem," ’s voice crackled through the comms. "The file size is pushing several petabytes. If we try to push this through the resistance servers, Sumeragi’s 'Siren' protocol will trace the upload back to our base in seconds. We need a way to transfer large files securely and for free —without leaving a footprint." Before uploading, use a tool like 7-Zip or WinRAR