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What is packet sniffer?
A computer program designed to intercept and analyze network traffic, enabling users to capture and inspect data packets flowing across a network (i.e. internet). People use packet sniffers for troubleshooting, network analysis, but more often than not it is used for unauthorized purposes such as eavesdropping and gathering sensitive information on an unsecured network (think public WiFi hotspots). Popular packet sniffer programs include Wireshark, Tcpdump and Snort.
Concerned about his roommate's secretive behavior, Mark decided to employ a packet sniffer program on their shared Wi-Fi network, hoping to uncover any hidden online activities or personal information being intercepted without consent.
packet sniffer - video
Packet sniffer - what is it?
someone who sniffs out peoples balls
oh josh? hes a right packet sniffer