Re: [RFI] Rogue backdoors found in solar inverters made in China

[Steve Dyer W1SRD via RFI <rfi@contesting.com>]

Jim,
Don't be so logical and analytical!
Blaming the Chinese bogeyman is so very di regueur with the in crowd.
As you point out, software security flaws in ABB et al industrial 
control gear make it plenty easy for hackers if they can get access to 
the device. No need for mysterious "back door" hysteria.
Steve
W1SRD


On 5/16/2025 5:15 AM, AA5CT via RFI wrote:
>   Without further clarification, this could range from anything the 
> 'researchers' noted from a JTAG (Boundary Scan) 'port' to an RS-232 / serial 
> data port that's active during boot-up of the uProcessor ... who knows what 
> triggered their 'call' on an undocumented comms feature.
>
> The Enphase series of panel mounted inverters have built-in wireless comms 
> capability - why wouldn't the competition have something similar?  Without 
> specificity I'm having trouble accepting this on face value. And I'm saying this as 
> an engineer who has done product design/development with such comms capability 15 
> yrs back now.
> I just reviewed a video the other day where an ABB made industrial VFD used in 
> the field (application was irrigation out in a literal field on the plains) 
> used a wireless connection to a smartphone to convey realtime operational 
> parameters useful during troubleshooting w/o having to be glued to the local 
> control and interface panel (which had limited display real estate for display 
> of data). Don't know if the 'air interface' was ZigBee, Bluetooth, WiFi or 4G 
> LTE data, but the interface to the smartphone was wireless ...
>
> de Jim AA5CT
>
>
>
>      On Thursday, May 15, 2025, 4:38:10 PM GMT-5, Rob Atkinson 
> <ranchorobbo@gmail.com> wrote:
>   
>   Reuters reports that solar power inverters made in China have in some
> cases, contained undocumented devices for communications.  Do you
> have, or are installing any solar power panels?  Do a check for
> anything that doesn't seem to belong amongst the circuitry.
>
> https://www.reuters.com/sustainability/climate-energy/ghost-machine-rogue-communication-devices-found-chinese-inverters-2025-05-14/
>
> This isn't without precedent.  Dock cranes many of which are made in
> China have also been found to contain similar undocumented
> communication/control devices.
>
> 73
>
> Rob
> K5UJ
>
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