I have recently experienced the program opening without asking for a password, first.
I went to the "File" menu, selected "Set password for this data file," and proceeded to go through the steps to establish a password.
All went well until the next time I opened the file, and it did not ask for a password. I went through the process several more times, with no success.
And then, just on a hunch, I reset the password, closed the program, and restarted my computer. Now, each time I open the program it asks for my password. Apparently, the restart solved the issue.
Ken Wagoner
Harrisonville, Missouri