You can protect a project file by setting a password for the file editing or transfer.
When you edit or transfer a project file, a dialog box that confirms the password appears.
If you enter a password and it is confirmed, you can edit or transfer the project file.
Be sure to remember your password in order to edit and transfer.
See the following for information on setting up Transfer passwords.
34.7 Secure Transfer with Passwords
3.5.1 Procedure - Setting up a Project Password