At this time of writing, TurboGet is still relatively new and untested. Security and privacy is a big focus for this program, but you should possibly always be extra careful.
There's no information about your torrents, username, or any data transmitted to TurboGet servers, or anywhere in the cloud. Logs are not written to disk. You can always verify this by running wireshark and inspecting packets.
Some general suggestions:
- Use HTTPS everywhere possible
- SFTP offers possibly the best security while downloading files, even if the speed might be slightly less compared to HTTPS
- Consider using a VPN, but this might reduce download speeds a bit