Computer forensic is a science of acquiring, preserving, retrieving and presenting data that has been processed electronically and stored on computer media and according to Department Of Justice Federal Bureau of Investigation (FBI),computer forensic includes formalized and approved methodology to collect, analyze and present data in a court of law [ 2].
Computer forensic is needed due to the complex nature of electronic media. Traditional forensic science technique will not work in recovering and compiling computer based evidence. There is tremendous amount of fraud being committed using computers. Everyday thousands of computer users are bombarded with tons of bogus email. There is always someone on the internet typing to find a new victim to commit a crime against. There are fake websites, phony on line auctions, credit card fraud and a host of other crimes. The percentage of fraud is going up and people are losing thousands of dollars to cyber thieves. Attacks against companies are also very rampant on the internet. Hackers and other such individuals are always trying to compromise one system on the internet. It may range from a home user to a sensitive government system. Hackers have been known to steal valuable information from e-commerce systems and hold the information for ransom. Thus, all these various examples necessitate the need for computer forensic to save cyber society.
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