How safe is Cambodia?

Times have changed and Cambodia have made substantial "progress" in the safety aspect of their countries.. While there is still progress to be made, in my opinion, the days of Cambodia- specially the major cities urban, being the "wild west" are mostly gone.. They are much more like any other developing Asian city.. and there is still progress to be made..
That said, like most all places, there is always the chance for things to go bad- no place is immune from that.. But I do feel that with some common sense, practical safeguards, the chance that they'll have anything go wrong will be incredibly small.
I think you have a valid concern, but I think that the overall risk level is much lower than you perceive it to be.