Wireshark is an open-source network protocol used to monitor and analyze packets in a network.Wireshark analyzes networks, captures traffic and decrypts information passed through the communication channels into a form that is readable and can thus be used to learn how network protocols work.Wireshark also captures traffic that can help in troubleshooting network problems and it is free.
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Wireshark is also used for hacking which is a security breach. This can happen in wireless networks because they are not secure and most protocols of which are also not secure.Hackers use Wireshark to capture login details or information sent over networks. It is a free open source software that can be freely downloaded from the internet. Wireshark can be used on windows systems, Unix systems as well as Mac OS X systems and can also capture raw USB traffic.