Which has absolutely nothing to do with isolation. The two processors are not ‘interconnected’, they are separate and can only communicate through defined interfaces. That’s isolation. If there is a backdoor on one processor that grants access to the other the problem is that backdoor and not some nebulous interconnection.
If your computer runs a backdoor that grants access to anyone who can access it over the network, the problem that someone from China can now control your computer is not the fault of the Internet. It’s the fault of that program.
And also ‘most of phones’ in the article is ‘Android phones’ and then it’s watered down even more to ‘Samsung Galaxy phones’. ‘In most devices, for all we know, [...]’. No.
