[skygazer]

I guess it was the decrypted arm64 kernelcache that was discussed elsewhere on the net on the second day of WWDC, a week ago. So, perhaps this is stale news to those in-the-know.

Interestingly, only the 64 bit ipsw was left unencrypted, not the 32 bit. The inconsistency may imply it really was an error?

As for the impact, apparently it's been possible to decrypt 32 bit kernelcaches on A5 and lower processors for some years. I don't know if that holds for more recent versions of the OS, or just those from several years ago. But, it's not entirely unprecedented that it's out in the wild. Apple just gave the exploit searchers a head start this time.

[skygazer]

Here's the post/thread that caught on:

https://news.ycombinator.com/item?id=11954780