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Comment by duskwuff | Hacker News Reader

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What, in your mind, is a "security processor module"? As far as I'm aware, there is no such entity in Apple systems; security functionality is on the same die as the CPU/GPU. (Which is a good thing; it means that communications between the CPU and that security processor cannot easily be intercepted or interfered with.)

There is a "secure element" which contains eSIM and NFC and is a separate chip. I believe NXP makes them but don't know. But there's plenty of other chips like power management.

I always heard of the T2 chip.

Those don't exist in ARM Macs.

Those were binned Apple A series chips.

They used some of parts of it like the secure enclave, SSD controller, biometrics and hardware disk encryption.

Now days, those components are all already built into the M series chips.

T2 is no longer a thing since the Apple Silicon chips. Apple moved their support chips into the main SoC.

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