I would give your location a very good looking over, if it can be reached by standing on something then it's not high enough off the ground, if it can be reached by standing on a car hood, in the back of a pickup or small box, then it needs to go higher.
One deterrent was to put fake cameras up on very tall poles, some we used even had a solar cell/battery for the LED light that blinked at night.
In broadcasting we have had problems with drug addicts (we call them tweekers) stealing the copper wiring and hard line coax (all copper) at remote broadcast sites, putting things in conduit helped, until they started carrying hack saws, then we had to go with larger conduit with chrome-molly tubing inside, (very hard stuff and at accessible areas only) then thin wall conduit with the cables inside of that, the chrome-molly tubing was allowed to float inside the larger conduit, when they started to hack into it, all chrome-molly would do would rotate, you could not cut into it, by that time the cops where there. (CCTV systems)
This was expensive but it beat the cost of replacing the hard lines every month or so.
So give your site a good looking over, if it can be reached without the use of an 8 foot or taller ladder it's not tweeker safe.