IOS Application Security Part 20 – Local Data Storage (NSUserDefaults, CoreData, Sqlite, Plist files)

In this article, we will look at the different ways in which applicatons can store data locally on the device and look at how secure these methods are.

We will be performing some of these demonstrations in a sample app that you can download from my github account. For the CoreData example, you can download the sample app from here

One of the other things that we will doing different in this example is that we will be running the application on the IOS simulator using Xcode rather than on the device and hence will be analyzing the application on our computer rather than on the device. This is just to demonstrate that you can perform all the steps performed before in previous articles on your system as well by running the application via Xcode. Optionally, you can simply run the application on your device using the steps mentioned here.

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