mobile Forensics is the branch of digital forensics that focuses on forensically sound extraction and analysis of evidence from mobile devices such a smart phones.
Because nearly 43% of smartphone owners have an apple, I owe a smartphone. A basic understanding of Apple's IOS is helpful to anyone trying to recover digital evidence from an iPhone or iPad
IOS, his apples proprietary mobile operating system.
It partially all of its mobile devices such as the iPhone, iPad and I part tucked.
IOS is a UNIX like operating system derived from Mac OS, the operating system that runs on Apple's Mac computers.
IOS axes an intermediary layer between the apse, where mobile applications in the underlying hardware
perhaps not interact with the hardware directly. Instead, they communicate through the operating system.
I always provides a layer of abstraction so ABS can work reliably on different devices with different hardware capabilities.
I was his first released under the name iPhone OS one in June 2007.
Since then, there has been one major operating system release every year,
with the release of iPhone OS four. In June 2010 Apple renamed iPhone no EST toe Iowa's to accommodate the addition of the iPad, an iPod touch, which also ran the operating system.
IOS architectures divide into four layers or levels of abstraction
from high. So Lois, these layers are Coca Touch, Media Corps Service's and Cora s.
Each layer contains key frameworks used when developing APS for IOS devices.
High level layers build on the low level layers when developing an APP. High level frameworks are layered over top of low level frameworks.
Low level frameworks, air used when certain features or functionality cannot be achieved using high level frameworks.
The first or highest layer in the architecture is the coca touch layer. Coca touch facilitates development of the visual Parents of a nap
consist of frameworks that provide support for multitasking gesture recognition, push notifications and system service is
the second layer is the media. Later,
The media later comprises graphics and audio video frameworks that make the apple look and sound great.
The third layer is the core. Service is later,
of course. Service's layer contains fundamental system. Serves is used by almost all APS.
The technology is included in this layer. Support features such as to your location sequel like databases.
I cloud storage social media and networking.
The fourth and lowest layer in the architecture ER is the core OS later.
This layer contains low level features. Most other frameworks airboat on
the technology is in. The Slayer might not be directly used in the up or used by other higher level frameworks in the act.
This layer interacts directly with the device hardware and provides low level functionality such as file system handling, memory management, security, power management, encryption, T C P I, P. Communication and external accessory access,
foundational knowledge of the IOS, individual layers functions and how they interact with each other. The device, harbor and applications is useful when attempting to recover digital evidence from an IOS device.