• BakedCatboy@lemmy.ml
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    9 months ago

    Your ISP knows the Mac address of your router since it requests a public IP from them using DHCP. That’s why if you contact support they usually can confirm the brand of your router by doing an oui lookup.

    In theory the FBI could have collected a list of MACs and optionally used an ASN lookup on the public IP and then handed each ISP their list of MACs, which the ISP could associate back to customers to contact. It would only not work for customers who spoof their router WANs ethernet mac.

    But I think just patching it is a normal and fine solution imo.

      • BakedCatboy@lemmy.ml
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        9 months ago

        I only do web development, but my networking knowledge mostly comes from being the designated person to call the ISP for tech support and being in charge of setting up the WiFi in every place that I’ve lived, in addition to participating and running community scale mesh wifi tech meetups for many years (think NYCMesh except just 4 guys who never accomplished much aside from buying and flashing lots of routers with openwrt lmao)

        I also ran 12Us of homelab for a few years in my basement, which was powered by an overkill fiber to the home setup (courtesy of tricking Comcast into undercharging me for gigabit pro) that necessitated a 10G switch and firewall.

    • Case@lemmynsfw.com
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      5 months ago

      Or I mean, Shodan exists. I’m sure the gov has better.

      A theoretical botnet I was looking at on github used shodan to identify possible targets to infect.