x86 finds its way into your iPhone

In one of my several lives, I’m supposed to be a vulnerability researcher working on baseband exploitation. As every vulnerability researcher knows, being up to date with recent developments is of utmost importance for the success of your job. So of course, after Apple announced its new, shiny, big, bigger and biggest line of iPhone smartphones, I downloaded some OTA firmwares from ipsw.me and started to look into the new baseband firmware.

What I discovered sent a shiver of horror down my spine, the kind of horror that only playing Doom at nighttime, alone in your room, without lights, can produce. Bear with me and I’ll tell you what I found

So the baseband processor inside the iPhone XS is a tiny x86 processor. That’s not really all that meaningful or impactful, but I find it deeply fascinating nonetheless.


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