How do I restrict access to powerpmac project folders?

[paison]

I found a problem that powerpmac does not need any privileges to access files in userflash directory. It does not need a password to access files. There are project files in this directory that can be deleted and modified arbitrarily.

[paison]

I want to know how to protect the integrity of the controller project. Turbo PMAC can set the password. The problem is that power has set the password, but there is no way to restrict the anonymous access of the user project.