And, finally, Apple came out with a response:
Basically, it says: no big deal, you're all ok, it's just that some Uyghurs got hacked by the Chinese government. Carry on, nothing to see here.
It didn't go over too well with the security community. Here's Alex Stamos, who was once CSO of Facebook and famously quit over FB handling of the Cambridge Analyica fiasco (click for the whole thread):
To be fair, Apple is in a very delicate situation here. On the one hand, they position themselves as the best when it comes to security, ruthless in protecting their users, while on the other hand one of their most important markets is China, where their approval to operate can be yanked at the whim of the government. Government which just used their devices to hack basically all of the iPhone-using Uyghur population. So, not a lot of room to be both moral and profitable.