[adrian_b]

While in general you are right, you should not forget that almost one year ago it has been revealed that the "Apple Silicon" CPUs had a hardware backdoor that had been exploited for years by malicious entities (i.e. some unprotected test registers that allowed the attacker to bypass the memory protection and gain complete control remotely, through the sending of an invisible message, without any chance of being detected by the owner; the complete exploit had used a chain of bugs in the Apple system libraries, together with the hardware backdoor).

Such a hardware backdoor is rather more severe than most of what has ever been discovered on non-Apple devices.

As long as the main protection of the Apple devices consists mostly in their lack of detailed technical documentation, one can never know whether other such hardware backdoors exist.

[acdha]

Do you have a reference for that? It doesn’t sound like GoFetch, which is the closest on timing.