Reverse engineering expert witnesses may opine on failed components and reverse engineering. RE is the process of taking something (a device, an electrical component, a software program, etc.) apart and analyzing its workings in detail, usually with the intention to construct a new device or program that does the same thing without actually copying anything from the original.
RE is frequently used on computer hardware and software. Software reverse engineering involves reversing a program’s machine code (the string of 0s and 1s that are sent to the logic processor) back into the source code that it was written in, using program language statements.
Software reverse engineering is done to retrieve the source code of a program because the source code was lost, to study how the program performs certain operations, to improve the performance of a program, to fix a bug, to identify malicious content in a program such as a virus or to adapt a program written for use with one microprocessor for use with another.
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