Computer forensics in IT audit and credit card fraud investigation - for USB devices

In today´s digital world internet became a popular source of online purchasing and plastic money facilitates the transaction of money. Online shopping has made the human life more easier and now user can feel the real shopping experience in virtual world of internet. As the popularity of e-commerce increases so the threats. Service providers and merchants who process credit card and debit card became the easy targets for computer hackers to steal information of cards and commit frauds. Nowadays merchants are providing many merchant facilitating employee to bring personnel devices and technology such as smart phones, laptop, etc. to simplify business and reduce capital expenditure, and opening a new site for fraud that can be committed by their own employees. In this paper we present the implementation of computer forensics to identify the source of for credit card fraud done by employee or internal people by USB devices.