My mother just recently paid to have a few cameras installed, the cameras are magically on the cloud and accessible from her phone/ tablet, so that the footage could be viewed anywhere
I've not had time to look at these cmeras yet but I suspect the cameras are sending the images back to the country of origin; where all the live video data would be extremly useful to a foreign miltary.
a few ideas come to mind eg face recognition, number plate recognition, your wifi and password for other equipment to connect to, potential to access your local LAN etc..