If I package a demo for development, can people access and rip off assets from the demo?

[anonymous_user_923c79df]

It gets packaged, so there is no easy way to rip off your assets https://forums.unrealengine/showthread.php?41227-Security-of-pak-files
But keep in mind that nobody can access those files when the game is packaged (so you still need the project file)