My application is distributed among thousands of people, I want to
protect the access to the database against third tools.
I know that Firebird gives the protection system to the operating
system. In my case this is a problem because the customer is the owner
of the operating system and then he can do anything.
I can change the password, etc... but this protection is not efective
if you have administrator rights in your operating system because you
can manipulate the FB.

I do not want that the user see the data or stored procedures.
Is there a way or trick to protect the database against these access?

Thanks in advance