I’ve been using this happily for a long time. For those taken back by the endless prompts on the first run: that’s only for the start. Select “forever” for connections you trust and you’ll soon have much less prompts.
On a side note: the developers also have Micro Snitch, an app that warns when the camera or the microphone on your mac is in use.
On a side note: the developers also have Micro Snitch, an app that warns when the camera or the microphone on your mac is in use.