Oğuzhan Varsak

Oğuzhan Varsak

Developer

Monitoring iOS HTTPS Network Traffic

In an attempt to explore Apple’s Find My Friends API, I was led to monitor the network requests coming from my iPhone 6s and actually finding some rather interesting responses.

For this guide I have used the Charles app for Mac OSX and my iPhone 6s, although this guide and the Charles app could be applied to any other OS and hardware.

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How Apple Completely Prevented Users from Downgrading iOS

Part 1

Long time ago, Apple allowed firmware updates while offline, this make it impossible for them to control the firmware version on these devices.

After canceling this feature (in the early days), iOS devices will connect to an Apple server, send their device information, and through “signed” firmware, the devices receives a Digital Signature in order to upgrade their device.

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