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Joined 3 years ago
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Cake day: December 20th, 2021

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  • It’s not reading the contents of RAM via EM emanations, it’s using the EM emanations caused by certain memory access patterns as a side channel to exfiltrate data. Of course, that data could be anything, including whatever is in RAM, but the point is that you need to be running the code that generates the necessary memory access patterns to transmit the bits of data. This is not like TEMPEST where you can reconstruct a video display just using the emanations.












  • He doesn’t actually do the calculation required to give an estimate of what that number is.

    Going on the stats in the article:

    • assuming that Wukong has just surpassed the revenue of Steam Deck in the chart so we can treat their revenues as equal
    • assuming Wukong price is $49.99 and average Steam Deck price is $500
    • using the stat that 14m copies of Wukong sold on Steam so far

    that would imply ~1.4m Steam Decks sold

    The article does go on to say:

    Keep in mind that by November last year, Valve said the Steam Deck had already sold “multiple millions”.

    So really this (very rough estimate) is telling us nothing that we didn’t know already. The top seller charts are showing exactly what we would have expected to see.