I had a system installed at the office a few years ago. After I saw how the installer (aka 'the guy who really knows and does the tech stuff for us') had no clue about how to secure it I simply disconnected it from the internet. Ditto for the internet accessible alarm system (that I paid extra for just for that purpose). I haven't had a chance to dig in and secure either product so they sit unused and only on a separate network to this day.