• @lemmyman
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    212 days ago

    I would love to see a detailed technical explanation for how this would be possible.

    I design battery-powered electronics for a living and I can’t think of any design that would let a battery explode with the violence these did, let alone on command. Unless it were deliberate.

    • comador
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      2
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      17 hours ago

      Here’s your detailed tech possible explanation with citations:

      Pagers known used in the attack were Apollo Gold AP-700, AP-900 and AP-924, which all use the same ALA25 programmable logic chip.

      If you google the Gold Apollo AL-A25 Programming Manual and look for battery gauge inputs, you can see it is possible to program the voltage ranges.

      By setting the battery gauge level-high to an invalid selection that is also greater than the low level it creates a bridge between the anode and cathode, resulting in thermal runaway which will in fact cause the battery to overload and explode due to the increased temperatures.

      We’ve done this using similar batteries on battery backed write cache controllers sitting in a nema-3 enclosure just to see what the tolerances are.

      Edit Citations:

      https://www.mitsubishicritical.com/resources/blog/thermal-runaway/

      https://www.apollopagers.com/support/al-a25-gold-pc-programming-manual/

      https://www.manualslib.com/manual/1198103/Gold-Apollo-Al-A25.html?page=23&term=voltage&selected=1#manual

      Programmable chip responsible:

      GAPOLLO AL-A25_6 RA5794.1 chip = AP-900 and AR-924 models

        • comador
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          -117 hours ago

          Oh please educate me troll. I am waiting.

          • @[email protected]
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            fedilink
            28 hours ago

            By setting the battery gauge level-high to an invalid selection that is also greater than the low level it creates a bridge between the anode and cathode, resulting in thermal runaway which will in fact cause the battery to overload and explode due to the increased temperatures.

            First part of this is gibberish. Second part is just describing a short of the battery, which will destroy it, but is completely inconsistent with video footage which shows small high explosive charges going off. That is not how battery shorts happen. This was not done in software, there were actually explosives installed in the devices as reports are starting to now state. But you know, good job on the sheer volume of words you wrote.

            • comador
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              06 hours ago

              Surprised you responded, I’ll respond back later when I get home so I can share the level of detail it is I am talking about.

              • @[email protected]
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                fedilink
                14 hours ago

                Nothing you say will make a lithium ion battery into a high explosive. There is no combination of words you can say that will make that true.

                • comador
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                  13 hours ago

                  So wait, you come storming in trolling fake bs fake. Then I come back with citations that I sincerely forgot, you then respond with zero evidence to the contrary to “educate me” and go out of your way to just shut down, cross your arms and pout?

                  Yeah. really, sincerely, you have zero ethics.

          • comador
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            -117 hours ago

            Thank you for reminding me, edited in the citations. Back to work.

    • Badabinski
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      fedilink
      22 days ago

      Same here. Like, there has to be some kind of specific vulnerability in these pagers, right? You can’t just “heat up the battery,” you need something that will actually use the power. If the pagers weren’t compromised between the manufacturer and the recipients, then there’s some major fuckery afoot.

    • @steventhedev
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      22 days ago

      Best I can get is figuring out a way to reuse some pins on the uc to isolate two or three caps to use as voltage pumps and then dump the whole thing at once into the battery.

      I somehow suspect Electroboom is going to get a lot of new viewers in the next few days

      • comador
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        2 days ago

        Reading a bit more into it, seems all of them were Motorola Apollo Gold pagers (I stand corrected), so they had to have exploited the li-on charging pins to either create a loop causing thermal runaway, or spam different voltage discharging signals via their payload. Regardless, it’s a truly impressive exploit.

        • @steventhedev
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          32 days ago

          You must have read that wrong - this was clearly committed by Israeli super spy Moty Rola.

          Seriously though - they were all from a single Iranian supplier, not Motorola (at least according to every source I can find)

          • comador
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            edit-2
            2 days ago

            Yeah, news still coming in, hard to make sense of it all. I am now seeing models in the attack as being: Apollo Gold AP-700, AP-900 and AR-924.

            Ap-900 Battery electrical specs: 10-30VDC or 8-18VAC Input 3-40VDC/25VAC Standby <10mA Active <100mA Tolerance -10’C ~ +50’C

            Ah. So the G_Apollo AL-A25 logic chip used in these models is programmable and unlocked by default lol.

            Programmable chip responsible:

            GAPOLLO AL-A25_6 RA5794.1 chip = AP-900 and AR-924 models