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Practical Mobile Forensics by Heather Mahalik, Rohit Tamma, Satish Bommisetty

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Acquisition via jailbreaking

To perform physical acquisition on devices that are not vulnerable to the Boot ROM exploit, the device must be jailbroken. Jailbreaking an iPhone allows the examiner to install tools that would not normally be on the device, such as SSH. By far, the most popular method for jailbreaking is with redSn0w or evasi0n. Both tools have simple wizards that will step the iOS device through the jailbreak process and install the Cydia application. An examiner should only jailbreak a device as a last resort and should use great caution when doing so. Again, all steps taken by the examiner must be well-documented. The jailbreaking process makes changes to the device, which may damage evidence or render it inadmissible in court. ...

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