MG
25.3K posts

MG
@_MG_
Nightmare Reifier. I sell some of them too: https://t.co/5HhKqfxtda & https://t.co/9flQ1nSPZ2



My friend @joegrand did it again. He’s not just recovering millions in crypto wallets, but also unveiling messy relationships, betrayal, etc. A very entertaining watch reminiscent of the start of a murder mystery. He’s also upgraded from voltage glitching to electro magnetic (EM) glitching. It’s sort of a very complicated Jedi Mind Trick on chips. Here’s a high level explainer: Let’s say the hardware wallet has a max pin retry limit. And it’s coded like this: if attempts >= MAX_ATTEMPTS: lock_device() Inside the chip, the values of attempts and MAX_ATTEMPTS are just bits. 0s and 1s. Literal voltage levels that are low or high. Stored in tiny transistor circuits. When the processor reads them, those electrical states travel through logic gates that perform the comparison. Normally the comparison works fine. But what if you could reach inside the chip and disturb those electrical signals right at the moment the chip is doing that comparison? That’s what EM injection allows. It’s essentially just a few loops of wire held over the chip and a very fast bust of voltage is sent through it. It’s not as simple as it sounds though. You have to discover: - the exact moment in time during execution - the exact physical spot on the chip package - the right distance from the chip - the right pulse voltage - the right pulse duration - the right probe geometry The search space is HUGE. An exponential needle in a hay stack. If you are really familiar with hardware, you can narrow things down, but it’ll still take weeks of searching even after you have automated it. And even after all of that, there is still risk to the wallet across all the steps. Hell, the wallet could be somewhat damaged before Joe even gets it. And tons of people end up not even having the crypto they thought they had. Imagine if one of those people ends up with a dead wallet and blames Joe for it, all while incorrectly thinking they had millions. 😬 youtu.be/MhJoJRqJ0Wc

Radio transmission + GFI protected power outlet = 😬 You’ll need to turn on the sound to hear the popping and “grinding” sound coming out of the GFI.











![-=[ ФนŧФϝϟŧξφ ]=-](https://pbs.twimg.com/profile_images/432010793907785728/qIQNafKP.png)



someone built an OPENSOURCE MILITARY RADAR that tracks multiple targets up to 20km away its called AERIS-10, full github repo schematics, PCB layouts, FPGA code, python GUI, everything under MIT license commercial phased array radar starts at $250,000. military surplus is $10,000-50,000 but its decades old analog junk with no electronic beam steering this does electronic beam steering at 10.5GHz, pulse compression, doppler processing, multi-target tracking on a real time map two versions: 3km range with patch antenna array, 20km range with 32x16 slotted waveguide array and GaN AMPLIFIERS custom frequency synthesizer, 16 front-end chips, FPGA doing all signal processing, GPS and IMU for ACCURATE target coordinates when the platform moves all gerber files included so you can order the PCBs and build it yourself one person built what defense contractors charge a quarter MILLION for and open sourced it




conceptually.. the capacitors are like shock absorbers, and in a car you want the shock absorbers to be close to the violence. here the violence comes from the mosfets. i have no idea if this makes sense but i'm guessing big caps go near the fets











