How can I monitor which data an iOS transmits over WiFi?

1

I use a third party keyboard which has suggestions and the developer claims – on his website – that it stores everything locally on the device, but there is no word on this matter in app description on the App Store.

So I was wondering if there is a way I could monitor the data being sent/received by this app while connected to WiFi, as it seems there is no data being sent/received over cellular cause it doesn't appear in the "USE CELLULAR DATA FOR" in Settings > Cellular.

Pedram

Posted 2016-02-24T16:10:35.620

Reputation: 19

@DavidPostill I think it's fine for the question to stay here. The solution requires a dedicated computer acting as a man-in-the-middle proxy to which the iPhone connects. Or at least a router capable of sniffing WiFi data, if the data is sent without app-layer encryption. – slhck – 2016-02-24T16:21:28.533

@slhck Fair enough. VTC and comment removed. – DavidPostill – 2016-02-24T16:22:20.110

What networking equipment (other computers, router, etc.) do you have at hand? – slhck – 2016-02-24T16:52:56.220

@slhck thanks for your help, I've got a MacBook Pro & a D-Link router. – Pedram – 2016-02-24T18:17:04.110

Answers

0

You can try to use Paros for that. Take a look at this detailed guide for more information: http://blog.jerodsanto.net/2009/06/sniff-your-iphones-network-traffic/

The only problem with Paros is that it only captures HTTP GET/POST requests using the standard method, so to get all network traffic, do the following:

  1. Just turn on network sharing over WiFi and run a packet sniffer like Cocoa Packet Analyzer (in OSX).

  2. Then connect to the new network from iPhone over WiFi. (SystemPreferences->Sharing->InternetSharing)

Victor Marchuk

Posted 2016-02-24T16:10:35.620

Reputation: 687

Asked: 2016-02-24T16:10:35.620

Viewed: 115 times

Active: 2016-02-24T18:01:39.207