My garage door is 13' high and I removed the emergency release rope from the handle. Plus it's lit outside and faces one of the busiest streets in the city. Also I have a really nosy neighbor that's always watching our place to see what we're up to. And beyond that I block the rollers channel path with large blocks of wood so the door won't roll up more than a few inches. These are measures I take if we're gone on long trips. :B Oh I forgot about my buddies who are still working the street who regularly patrol the property while I'm gone. No windows to break into but I guess anyone could saw a hole through a wall.