[gostsamo]

IPhones use A12/13/14 chip and the vulnerability is not confirmed there. Also, the post mentions that if you have two malware apps on your device, they can communicate in many other ways, so I'm not sure what's new here.

Edit: fixed name of the chip.

[saagarjha]

I just tested it on the A14 and it seemed to work there.

[withinboredom]

I wonder if it would have passed Apple's review process?

[saagarjha]

At this point I would hope that App Store ingestion would filter for this.

[umanghere]

iPhones do not use the A1 chip as of quite a few years ago. Besides, the M1 and the A12+ have significant microarchitectural similarities, to the point that the DTK used the A12Z.

Furthermore, the keyboard app extension and the keyboard app are installed as a single package whose components are not supposed to communicate, hence why I brought this up.

[dfox]

I believe that only significant difference between A14 and M1 (apart from package) is number of cores.

[gostsamo]

The only 1 in the name of the chip is typo. The rest I'm still not sure if it is significant.

[Closi]

iPad contains an m1 chip so that might be a similar better example.