Getting Started In IOS Kernel and Userland

Good Morning I was wondering how to get started with IOS Kernel Reversing and Usermode Reversing ?, I have experience with malware reversing on Linux, Android and Windows.

Basically the same.
I recommend reading MOXIL ,or wait for MOXIL2 first.

In the meanwhile, is another must-read repo

EDIT: MOXIL is the book written by JLevin - Mac OS X and iOS Internals

NavillZhang thanks i’ve always wanted to start IOS Hacking been reversing windows lately :).