Need advice!!

We have asked our family members to ask permission before posting pictures of our daughter. My family did not care, and posted pics of her on her 1st day. We dealt with that and haven't had any problems with them since. My SIL is pregnant too, and I just saw that she took a pic of my daughter and posted it on this app! I had no idea. I am so angry, especially because she has talked about how horrible my family is for posting pics on FB! I don't even know how to handle this...Just confront her?? I'm tempted to disable FB and not allow anyone to take any pictures of her at all, because people obviously will just sneak around and post them! 😠