> GrapheneOS is fully open source
Not really. There is a bunch of proprietary firmware running on those phones, which can be exploited with or without the help of the manufacturer.
> GrapheneOS is fully open source
Not really. There is a bunch of proprietary firmware running on those phones, which can be exploited with or without the help of the manufacturer.
Firmware is not OS.
Your machine is a distributed system. The firmware is what runs a specific node.
Yes they usually have DMA, shared busses, etc. That's an implementation detail.
An implementation detail where TLAs could theoretically get root remotely? Seems like a bit more than a detail to be glossed over.
Show me any device on earth that can run a browser that has no proprietary code whatsoever (including hardware) on it?
AFAIK older Talos Secure Workstation with Power CPUs was it. Everything open including CPU firmware.
Not sure about smartphones though - they mostly struggle with a fact there are no truly open source baseband.
There is no smartphone fully powered by open firmware. Also keep in mind that the hardware itself is proprietary too.