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The next scale is reverse engineering, it is a process of recovering the design requirements, specifications

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and function of a product from an analysis of its code, it builds a program database and generates

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information from this.

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The objective of reverse engineering is to expand it the maintenance work by improving on understandability

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of produce the necessary document for a legacy system in software security.

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Reverse engineering is widely used to ensure that this system does not have any major security flaws

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or vulnerabilities.

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It helps to make our system strong, thereby protecting it from hackers and spyware.

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I know it is difficult to understand.

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Let me explain in simple words.

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Reverse engineering is also called as make engineering.

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It is the process of extracting knowledge or design information from anything manmade and reproducing

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it or reproducing anything based on the extracted information.

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Reverse engineering is also beneficial in crime, where suspected malware is reverse engineered to understand

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what each does and how to detect and remove it, and to allow computers and devices to work together.

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Reverse and reverse engineering can also be used to create software and media to remove their copy protection.

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So in conclusion, reverse engineering is also an important skill for ethical hacking.