private files are stored in codice_5, and are only visible to "username". private folders, like public folders, can be named after more than one user (e.g. a folder codice_6 would be readable and editable by the users "foo", "bar", and "three"). private files can also be read only for users after "#" (e.g. a folder codice_7 would be readable and editable by the users "writer1" and "writer2" but only readable for "reader1" and "reader2"). unlike public files, all private files are both encrypted and signed before being uploaded, making them end-to-end encrypted.