Mobile Forensics is a branch of Digital Forensics and it is about the acquisition and the analysis of mobile devices to recover digital evidences of investigative interest.
When we talk about Mobile Forensics generally, we use the term “Forensically Sound”, commonly used in the forensic community to define the application of methods and techniques, which respect the international guidelines for acquisition, and examination of mobile devices. The principles for the correct application of Forensically Sound techniques assume the primary purpose, which is the preservation and the possibility of non-contamination of the state of things.
All the phases, from the acquisition to forensics analysis of the mobile device, have to totally avoid non-alteration of the examined device. This process is not easy at all, particularly in mobile devices.
The continuous evolution of mobile devices technology, allows the commercialization of new mobile phones, which creates new digital investigations problems.
Hardware and software for these type of mobile device analysis are numerous, but none is able to give an integrated solution for the acquisition and the forensic analysis of all smartphones.
Furthermore, mobile devices are able to contain plenty of digital information, almost like a computer, so not only a call log or SMS messages as old mobile phones. Many of the digital information in a smartphone is reliant on applications installed on it, which evolve in such a variety that analysis software are not able to support them completely.
Often the data acquisition from a mobile device is not compatible with some parameters, which define a Forensically Soundmethod.
Airplane mode – The airplane mode is one of the options that can be used to protect the mobile collected into the crime scene to avoid in and out radio transmission. It is a risky option because it is necessary to interact with the mobile phone, and possible only if the phone is not protected with Passcode. To activate iOS on this option, from iOS7 with display locked, airplane mode can be set sliding the dock upward. To set the mode aereoplane in the Android OS:
Click the menu button on the phone to open the menu.
Select “Settings” at the bottom of the menu that comes up
Under “Wireless & Networks”, tap on “More”
Look for the “Airplane mode” option at the top of the settings screen. Tap on it to put a “check mark” on the box beside it
- Wait for the on button to turn blue. This tells you that the mode is active and your transmissions are now off.
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