Underground sniffers were among the most widely used tools by hackers due to the fact that they are difficult to detect by system administrators. ... The sniffer has the capability of "capturing every packet on a network"3 and decoding it to relay information to system administrators what is being conducted at any computer terminal at any given time. ... Their high tendency to be undetected is due to the fact that sniffers merely intercept data without having to transmit signals without alerting analysts of its presence. ...

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• Approx Pages: 5
• Grade Level: High School