Home Security can mean many things. Even if someone walks around your section and falls over something and hurts themself or makes a noise they will get away as soon as possible/. Recently someone got in to my back yard and walked into my steel welding table that has sharp edges on it, and that would have hurt I would imagine.
Keeping your home secure comes down to good locks, security camera’s and alarm systems.
There are many types of camera’s and many different situations, and some rather expensive “services” where hey store your camera recorded footage elsewhere where you can access it, or much preferable you can store all the camera’s on a hard drive.