IPA Analysis & Decryption

You pull the .ipa for the iOS app you are assessing, run strings on the binary, and get nothing — the code region is noise. That is FairPlay: App Store binaries ship with their __TEXT segment encrypted, decrypted by the kernel only in RAM at launch. So you read it after the kernel has. This covers the Mach-O layout, why static tools fail on an App Store build, dumping the decrypted image with frida-ios-dump and bagbak, and the triage you run once it is readable.