How can I protect my storage from being accessed by SolFS Explorer or by other users of SolFS?
Use callback mode. In callback mode you are responsible for reading and writing the pages of the storage from/to the underlying media. In callback mode you can transform the pages you read or write in the way you want, from simple XOR'ing the page bytes with some constant to encrypting them using some encryption algorithm. You can encrypt the page, swap it's bytes, swap the pages themselves and do anything else that your imagination can offer. Read the how-to articles in the help file for details about how to use callback mode.