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this post was submitted on 03 Sep 2025
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Ok first of all: GrapheneOS is great, probably the best alternative Android OS, but their PR skills are rock bottom. Still, many ignore that due to how good it is.
With that said, I don't believe their claim that it's impossible for them to target a user with a malicious OTA: their reason is basically that the update server never even knows who is downloading, and so it can't send a different file to just one user. That's true, but thet could, in theory, make a single OTA that everybody gets, but checks for a specific IMEI or other device ID and only there enables some malicious payload.
I trust them not to do it, for many reasons, but technically they could. I also don't think they'd do it to Louis, despite the beef they have with him.
Well, the fact is it is impossible to target someone with a modified update. The update client sends no IDs to the server, it just fetches static files and determines whether it needs to update or not. The server only has static files.
That would be very obvious in the code. And how would devices be targeted if GrapheneOS project members don't know the unique IDs because they're not sent in the first place? There are also community members who build GrapheneOS on their own and check if the builds match because GrapheneOS builds are reproducible. It just isn't possible. But even if people don't believe all of that, they can still disable the updater app and sideload updates manually. Instructions are on the website.