Simply put, it works like this: -Check the file or folder you want to send -Compress it, if it is needed and wise -Split and Encrypt with advanced standards -Give you an optional choice to add a heavy layer of password protection -Give you a nice link to share -Upload the parts, in the meantime, the receiver can get the file as you upload them

We are using a Gaia provider, and give users a limited 512MB per file plan, that should cover most of the daily uses. But, you can make your own provider and set it at sign up, then all the files will be uploaded on that provider, and no files, key, or metadata will touch our servers. Also, PLUS plan is on the way.