Özet:

Depending on the development of technology, every field that can come to mind today occurs with the use of the internet and the network. The use of the network, which has become an integral part of our daily life, is done via the internet in many areas, such as online shopping, data transfer, and our business life. All transactions include personal information, credit card numbers, etc. The use of personal information does not take place in the circumstances that the security of the personal information should be guaranteed well. With the progress of technology every day, the number of internet users is increasing. The positive aspects of the use of the Internet bring with it risks such as information security and personal life breaches. With the growing technology, computer pirates implement technology and ways to capture it with a little more different techniques every day.  The field of judicial information is the whole of the work of identifying, storing, investigating and presenting the data transmitted through digital media, all kinds of information objects in such a way that may be a number of evidence in the court. The findings obtained in the field of judicial information are made with various hardware and software, but software and hardware are not always sufficient. This requires various tests and analyses. One of these analyses is network analysis. Network analysis is used to illuminate an event that occurs on the network and to obtain various evidence. Today, a variety of programs are used to do network analysis and listen to network traffic. In this study, the use and importance of network analysis in the lighting of events in the field of judicial information was discussed, the Nmap, Zenmap and NetworkMiner programs, which were also used in network analysis, were studied in various applications and the findings obtained by comparing the ability between programs were presented by visualization.

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