Even home alarms are not all that good because they hide them in centrally located closets that the thief knows where they're at most of the time and kill the boxes; OR, they know they have 3 minutes to get what they need and get out, 3 minutes is more then enough time to get a bike and be gone. Alarms are a false sense of security, but if you have alarm stickers everywhere a bike thief may not have the expertise to know what to do with a home security system and may leave, but would think if they have the sophistication to track your bike thought your share ware device they've probably been in houses with alarms, which means they also have the sophistication to jam the alarm cell phone call.
I have a home alarm too, but hardwire phone system can be cut, cell phone system can be jammed, so it's more for the local effect even though it can dial through the cell, but really a pro will get past the phone issue, so it's more useful in case of a fire. I also have my security box hidden and not in a closet, I instructed the installer where to put it. But like I said, a thief who knows they have at least 3 minutes to get what they need and get out will do just that. My alarm system uses both the internet to call out first, if that doesn't work it goes to the cell.
So I also lock my bikes up at home, I do use a simple locking system, I just use a couple of thick 20mm braided cables and lock 3 to 4 bikes at time, so a thief will consume those three minutes pretty quickly from the time they enter the house, go to the garage, if they have tools, cut the cable, and leave.
But I live in good neighborhood with a security patrol, and this area hasn't had a break in for 20 or more years...according to what the security official told us anyways.
I also have homeowners insurance...duh!!
