How safe are wifi home security systems? Is it better to use Zigbee?




I am looking to set up some home automation, including a security system. How safe are these systems that use wifi to communicate with various sensors? I know one should use a sim-card as a back-up in case wifi goes down. But in terms of someone trying to “intrude” our wifi or the company’s server got hacked? How concerned should one be?

I have been looking into Zigbee. As I understand it should be safer since it creates a local network and uses AES encryption. Just to see if my understanding is right, would it be possible to make your own Zigbee bridge with a raspberry pi, and connect various Zigbee devices (from Phillips, Samsung, etc) and control them all from the single bridge? And in case wifi was down all sensors would still be able to communicate with the central hub, I would just not be able to see their status on the app/website?

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Original article: How safe are wifi home security systems? Is it better to use Zigbee?
Author: /u/One_Concept9890