Advanced Mobile Device Analysis Using JTAG and Chip Off

Forensic analysis on mobile devices is becoming more complicated as the device developers in their attempts to prevent data leakage add OS based protection or data encryption. This presents signifi cant challenges to the forensics examiners and investigators. Although the digital forensics vendors provide the latest and newest forensics applications for the ease of analysis, these are often limited to a logical based approach or work under a simple assumption that the device is ready for analysis. Physical acquisition may be the most effective way to acquire data when the device is locked or damaged, but has not been rooted nor jailbroken. JTAG and Chip-off are alternative approaches that help to solve the problem. In this article we look at both of these approaches.

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