Drivecord is a project made for educational purposes, made to store your files using Discord's content delivery network (CDN).
Your files are processed locally on your web browser, using client-sided JavaScript, then are posted to a private Discord server using a webhook. Drivecord GO does not store any pointers to these files, the URLs you generate are entirely static.
Yes, if you enable encryption. Encryption will encrypt your files with a random key, ensuring no one without the key can read the files.
Disabling encryption will store your files on the Discord server in source format, which is not recommended.
Your Discord account is not connected to Drivecord or Drivecord GO in any way.