It is also used as a diagnostic tool for network backup systems and to examine the network system for any security breaches.Īn illegal packet sniffer is used by a hacker to gain unauthorized access to sensitive information and data on a network.
A legal packet sniffer is a commercial device used to assist with network management and maintenance and to provide network security. Packet sniffers are used for both legal and illegal activity. A packet sniffer that has been installed on the network is capable of examining all of your email contacts, email messages, downloaded files, Web sites you visited, and all of your audio and video activity. However, with a packet sniffer, it can examine all of the data from all of the computers that are connected to the network by viewing every packet that is sent over the network. The packet sniffer gets its name from normal computer usage where the individual computer inspects packets of data that match the address of the computer.
When the data passes through the system, it is captured and stored in memory so the information can be analyzed. A packet sniffer allows you to set the interface of the network to view all of the information that is transmitted over the network. Packet sniffers exist in the form of software or hardware and can capture network traffic that is both inbound and outbound and monitor password use and user names along with other sensitive information. How a Packet Sniffer WorksĪ packet sniffer can view a wide variety of information that is being transmitted over the network as well as the network it is linked to. Hackers often use packet sniffers because they are very difficult to detect and can be installed in almost any location on the network. Packet sniffers are used for network management and network security and they can also be used by unauthorized users to steal information from a network. Home › Network Security › Packet Sniffers What is a Packet Sniffer and How Does It Work?Ī packet sniffer is a device that is used by network administrators to monitor the data that is being transmitted over a network.
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