Question

Describe Chip-Off. In what situations would this be a valuable procedure? Why do you think that?

Find (2) scholarly articles from the Maryville Library or a reputable journal discussing Chip Off. Write 2-3 paragraphs for each article summarizing it.

Do you agree with their rationale in the articles regarding chip-off? Would it be a valuable procedure? Why or why not?

Answer 1

Chip-off is a technique based on chip extraction from a mobile device and reading data from it. This is the most difficult way of data extraction. But it must be used when all other methods failed. This method becomes more and more popular among mobile forensic examiners, so we decided to discuss this technique in details.

This procedure will be valuable in the situations where you want to dismantle a product, or you want to replace the chip, or if you want to read the data from it.

Article 1:

Summary:

Throughout the digital forensic community, chip-off analysis provides examiners with a technique to obtain a physical acquisition from locked or damaged digital device. Thermal based chip-analysis relies upon the application of heat to remove the flash memory chip from the circuit board. Occasionally, a flash memory chip fails to successfully read despite following similar protocols as other flash memory chips. Previous research found the application of high temperatures increased the number of bit errors present in the flash memory chip. The purpose of this study is to analyze data collected from chip-off analyses to determine if a statistical difference exists between the removal temperatures of flash memory chips successfully and unsuccessfully read by using a t-test, F-test and an analysis of variance (ANOVA). The results from the statistical evaluation showed no statistical difference between the groups of memory chips successfully and unsuccessfully read, as well as, between older and newer types of Ball Grid Array (BGA) memory chips.

Article 2 : Summary:

In the field of mobile-device forensics, the practices of “chip-off” and “JTAG” analysis have become topics of growing interest among the community. As mobile devices continue to bring new challenges to the examiner, these two disciplines warrant close attention, as they both offer examiners avenues for deeper data access, the ability to bypass lock codes, and a way to recover data from damaged devices.

Yes indeed, i do agree with their rationale in the articles regarding chip-off. It is definitely a valuable procedure.

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