I did not mention hackers... I referred to an unauthorised access to private data, a breach.
The fact it was a Change Control issue does not make it better it is worse, because they are sharing user's personal data to unauthorised people - all without the aid of a malicious attack.
With Change Control like this they don't need hackers 
If they are getting basic Change Control messed then I do not hold out for a robust cyber defence capability 
I have been experimenting, with the Eufy Bases on the WIFI but denied internet access (firewall rule), when I was away I was able to view the Eufy Camera live streams (via HomeKit while on a VPN back to home) and recording made in HomeKit, but allowing notifications to be sent.
I have a guide on it and will be testing it over the next few days.
So the next step is to allow certain access for the EUFY Homebases to connect with the mother ship while blocking remote access to live cameras, recordings and configuration.
Setting up and using a VPN to access home services - such as EUFY Security Cameras and Hubitat is overly difficult and is very helpful.
I have just been dismantling one of the offline indoor cameras, I had been using them to augment external cameras by fitting them to windows by blue tacking them to the glass, they work quite well but the IR lamp won't work through glass. (if you do this remove the micro SD card first!!)
I was looking at physically disconnecting the camera's microphone, which is very easy to do, so now suitably muted I can get the internal ones working pointing out of the house.
For the other indoor cameras, I can add a zigbee/zwave switch and have them turn on when in AWAY mode.