A low(er) risk nitpick: You probably don't want to share pictures of your keys. (Someone would have to know you, your Lemmy handle and also be an asshole.)
The key is just a key. The one in the picture is an SC4, for a Schlage 6 pin lock. It's just super easy to either 3D print a quick copy from the picture and/or decode the key and cut a duplicate.
The process is easy, but it's also impractical in many cases. For someone who is motivated, a crowbar is probably a much more effective solution.
Edit: The point of my comment is just for awareness s'all and not really an "oMG seCuRiTy bAd" kinda thing.
This is a good video about who shouldn't be sharing pictures of their keys online: https://youtu.be/6mr-7hjItX0?si=zx8QnEX1P_QpTN8U. If you're a nobody who doesn't share pictures of their home you will probably be ok.