Is that a hole in the leg closest to the camera, on the left side? It looks like one, and if it is, then I'm guessing those "feet" are hollow tubes about the diameter of a roll of toilet paper, or maybe twice that at best. Not only is that super flimsy (some mildly aggressive pushing on the safe might cause those welds to snap pretty quickly), but even if you place rods inside the safe and go down through the feet, it wouldn't take a brain surgeon to realize they're hollow and cut through them with a hacksaw, exposing the bolts. Wouldn't take long either. I mean, yeah, it's an extra bit of work, but certainly not a game changer.
Just more of a reason to get rid of the feet.
If those rules aren't your arbitrary creation, help us understand why they're there, and someone might be able to offer you a superior alternative, or alleviate a potentially unnecessary concern on your part.