• mic_check_one_two@lemmy.dbzer0.com
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    2 days ago

    If your system uses systemd, it has an etc/machine-id, which is used for a lot of different things. And changing it will break a lot of stuff, probably until you reboot. I guess you could write something to randomly shuffle it every time you reboot? But it is the go-to way for lots of programs (including browsers) to identify themselves. Which means (unless you have done the work to scramble your machine ID) you can be tracked on Linux as well.

    • treadful@lemmy.zip
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      2 days ago

      The difference is that Linux isn’t sending telemetry to some central entity associating that ID to an IP.

      Microsoft’s records showed that at that exact same minute, a Windows device carrying GDID g:6755467234350028 had visited the ngrok signup page. Three hours later, the same GDID visited the retailer’s own website, through the same Tzulo proxy address used to set up the ngrok account.

      This article is super vague about this as well. How does Microsoft not only have the GDID->IP link, but they have Web history as well? Are they just exposing all this through advertising telemetry?

      Fucking gross. And if you know of anything on Linux exposing/transmitting the machine-id, please do let everyone know because nothing should. Anything that does should be considered malware.

      • Trainguyrom@reddthat.com
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        1 day ago

        This article is super vague about this as well. How does Microsoft not only have the GDID->IP link, but they have Web history as well? Are they just exposing all this through advertising telemetry?

        My interpretation was that they had an IP that they suspected was the perp’s home network, and subpoena’d some major platforms to confirm beyond a shadow of a doubt. Given the perp’s sloppiness in using the same machine for both personal and illicit computing activities, they could even have some network traffic in the capture to indicate which platforms they should subpoena

        Or if we want to be more conspiracy-minded, maybe they installed a trojan on his computer and this is the parallel evidence trail that law enforcement created so they don’t have to admit to hacking the hackers

      • hexagonwin@lemmy.today
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        1 day ago

        i think i remember hearing the dbus machine-id being read by google chrome on linux. it could be used for privacy violation with proprietary software, though i personally consider linux machines with chrome or equivalent software installed compromised.

        • treadful@lemmy.zip
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          2 days ago

          It’s not just Windows tracking your web browsing history. GPU drivers do it too.

          …on Windows. if you explicitly install their malware and agree to data sharing.

          • hirihit640@sh.itjust.works
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            16 hours ago

            I should have clarified, but yes it’s the windows GPU drivers. Though even on Linux, it’s hard to know what the proprietary GPU drivers do, but from what I read they don’t collect telemetry by default. Luckily Nvidia is developing official open source drivers now so we won’t have to worry about these things.

            Also note that for the Windows Nvidia drivers, it’s fairly annoying to disable all telemetry. It’s not just an option in the installer. You have to use unofficial third party tools.

      • Septimaeus@infosec.pub
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        2 days ago

        Upvoting both comments for awareness, since Linux is the first of a multi-step process, not a privacy panacea.

        But we must be clear that in both theory and practice there’s little comparison between systemd and modern Windows machine-user association.

        Someone using Windows regularly has a gaping wound, is actively bleeding out. Switching to Linux is just a tourniquet, but every other treatment is at best no-effect until that tourniquet is applied.

        E: transpose systemd/Windows for clarity

        • DevDave@piefed.social
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          2 days ago

          Also as a life long programmer, I have this feeling it is possible to just go in and make some changes so I can have the system just make shit up about the TPM while indeed also doing the equivalent of having system-d decide to respond with random bullshit.

          Don’t even need to be a programmer, just find a community of them that you trust that distribute their own “fixes”.

          Definitely not doing that with anything else because its both hidden in compilation and buried like herpes across multiple components. Probably/hopefully not directly related but I really want to know what they changed to break the clipboard service.

          • Septimaeus@infosec.pub
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            2 days ago

            And you’d be technically correct, the best kind of correct.

            To the inquisitor:

            any distro that’s fully OSS can be fully compiled from scratch with any modifications you choose).

            Though yes, if you’re still using Windows, the learning curve may look like a wall.

            I really want to know what they changed to break the clipboard service

            Guessing the X11 [X]Wayland migration KDE Plasma bug report? Should be fixed in 6.5.2.

            • DevDave@piefed.social
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              1 day ago

              Adjacent comment. I’ve found working in a true posix environment is drastically better than the oddities I dealt with Win32. One annoyance is Microsoft has never been able to implement fork().

              Though i never messed with x11 as I was never motivated to see what it was like under the figurative hood.

              • Septimaeus@infosec.pub
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                1 day ago

                It really is a hell of a lot more sane, instantly missed once you don’t have it. And yeah Fork’s a blessing when used with care lol

            • DevDave@piefed.social
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              1 day ago

              Sorry, switched contexts there. Microsoft broke their clipboard service recently which makes me think they added “telemetry” collecting logic somewhere in there.

              • Septimaeus@infosec.pub
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                1 day ago

                Oh right, I misread. And yeah not sure (my win32 repro targets have all been locked for a while) but with all the facepalm regressions I’ve read about lately it really could be anything.

                • DevDave@piefed.social
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                  1 day ago

                  From my experience, the number one culprit of legacy code breaking is someone asking if anyone knows how it works. Second most common culprit is someone making a “quick patch” to legacy code.

          • Septimaeus@infosec.pub
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            2 days ago

            I’m specifically highlighting that there is none though I acknowledge machine ID makes it easier.

            ETA: edited original comment to be more clear

      • mic_check_one_two@lemmy.dbzer0.com
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        2 days ago

        Yeah, motherboard-level tracking is scary because even the OS won’t be able to detect it. The truly paranoid people (and security researchers) go as far as desoldering chips to ensure nothing phones home.

    • ozymandias117@lemmy.world
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      2 days ago

      Where in the source does Firefox expose machine-id to websites?

      With a quick grep I’m only seeing it around audio?