Sniffers concept
A sniffer can be a packet-capturing or frame-capturing tool. It
intercepts traffic on the network and displays it in either a
command-line or GUI format for a hacker to view. Some
sophisticated sniffers interpret the packets and can reassemble the packet stream into the
original data, such as an e-mail or a document.
Sniffers are used to capture traffic sent between two systems. Depending on how the
sniffer is used and the security measures in place, a hacker can use a sniffer to discover usernames, passwords, and other confidential information transmitted on the network
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