They've all but stopped. I used to get attacked every 5 minutes or so if I left the game open and running but now I rarely ever get attacked. Normally this wouldn't be a problem but I'm using the attacks to quickly kill off unwanted dwellers by putting them in the door room with no weapons at level 1. It *was* a faster option then sending them into the wastes with no supplies to die. Does having dwellers in the door room reduce attack frequency? I have a lot of dwellers on coffee break. Does that somehow effect attack frequency?