You mean like this: http://www.theregister.co.uk/2016/11/17/hackers_mac_pwning_expedition_help_ive_got_too_many_shells/ ?
The hacker got into the chaps Mac and then had access to his Nest CCTV amongst other things. It's actually a frightening article if you have heavily invested into the IoT stuff for your home. The more you have the more they can mess with.
Personaly I have an electric door bell that rings a chime when someone presses the buzzer. I'm in to minds over whether to revert to the good old physical door knocker.
Biting the hand that feeds IT
