Adrian ,
First of all , if you want to protect your code , which is normal , while the project is opened , you should activate the project/project_info menu . There , click on the project tab , and then check the 'encrypted' checkbox . That should solve the 'F3' problem .
Second of all , concerning ReFox and other such utilities , that is indeed a problem . I
I read a thread or an article on UT on an program which prevented that event from occuring just 3-4 days ago. Maybe you should look it up.
Robert Munteanu