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Not an alternate timeline, I went to a blackhat talk that was exfiltrating data from airgapped computers with unconnected parallel port pins, printers (exact sa
by colechristensen 2y ago
Not an alternate timeline, I went to a blackhat talk that was exfiltrating data from airgapped computers with unconnected parallel port pins, printers (exact same thing as making them make music but faster and with EM), and other peripherals. At a usable distance of some meters too.
- erinaceousjones 2y agoYou can broadcast FM radio over short distances by doing PWM over GPIO pins, so that does not suprise me! I used this for switching radio controlled power outlets which had 433mhz receivers. [2] [1] https://github.com/markondej/fm_transmitter?tab=readme-ov-file https://github.com/markondej/fm_transmitter?tab=readme-ov-fi... [2] https://github.com/F5OEO/rpitx https://github.com/F5OEO/rpitx
- Terr_ 2y agoThere's also a recent "RAMBO" paper about using code to control how memory is accessed so that standard DRAM chips/circuitry will emit decode-able radio signals, at least enough to extract private keys from otherwise air-gapped computers.