Re: That implies targeted burglary
Having been the victim of a break in myself at the end of last year, I've since spoken to CID, security companies and shall we just say 'others'. Yes there are crimes of opportunity but the majority of break ins actually have a bit more thought behind them. Police think we were targeted because of my ethnic background and the increased chance of having a lot of jewellery at home (we didn't). They almost certainly knew our patterns of work / school and when the house was empty. We got broken into during the late afternoon rather than nighttime. My neighbour works from home and his office overlooks our house. Still didn't put them off.
Everyone I have spoken to said the same thing, an alarm will increase the chances of them just moving onto somebody else and sorry neighbours but that is what you want. CID said in over 500 cases he had dealt with, only a handful had an armed alarm. There is little doubt they do work.
In terms of notifying people, the bell unit is effective. not because your neighbours may poke their head round the corner (ours probably would) but because burglaries know that the chances are that somebody has been remotely notified. That gives them a few minutes to get in and out and less chance of finding 'the good stuff'. Saying that, according to my neighbours CCTV my place was turned over in less that 10 minutes by a gang of 4, including going into the loft.
Anyway, if it takes say 2 minutes to notify you via cloud app or text or whatever, then another 2 to check your internal CCTV and then a couple more to call the police (avg 10 minute response time) or a neighbour (I don't want my neighbour to risk their safety to confront some tooled up twats who are trying to get away) and time for them to respond they will have been in and out by then.
In all this, its no surprise that alarms are vulnerable. Software doesn't make money and who questions how secure their systems are as long as the function work, even security companies who sell this stuff for a living don't.