That was my Burglary posting from last year that you referenced in your comment.
I think the reason you may not have found any other circumstances is probably down to the consumer market Smartthings are selling into. People who buy Smartthings will almost certainly buy wifi cameras, wireless alarms, visible door sensors, and it’s these extra bits that probably ward off intruders, and not the Smartthings itself.
With my attempted break-in, at the time I only had Smartthings, so to the outside world my house was like any other house. However, since the break-in, I’ve bought two Netatmo outdoor cameras, and changed my Yale smart lock from mute to “all sounds on”, so that when the keypad is pressed, noises ring out the house, and not silent like I had had it set on.
And what do you know, cameras, Smartthings, Yale Smart Lock and 9 months later I’ve not had a single person come to my front door that I wasn’t expecting.
So my thoughts are, Smartthings hasn’t needed to prevent further burglarys, as it’s part of an integral system of cameras etc that act as a deterrant.