this post was submitted on 06 Jul 2026
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Cybersecurity
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My house batteries for my PV system are also susceptible to this. Ugh.
They've both got Bluetooth for monitoring and configuration. Some config changes require a PIN but not the settings to enable/disable charge and discharge. Someone could just get within range of them, install the official app, and set discharge to "off" and shut down my house.
I've also not found a way to disable bluetooth on them. Gonna have to put them in a damn Faraday cage if I decide to worry about that possibility. :sigh:
Wait, mine requires I scan a QR code physically on the device, or typing in the serial number. You can just... connect without any security?
Yep. The QR code is only the encoded BT address to make connecting in the app easier than....selecting it from a list.
Oooof. What an amazingly smart design choice.