On the lookout for DSniff - Part One

Sniffer programs are a data interception technology that increase the risk of so-called "man-in-the-middle" attacks, and with the release of dsniff, security specialists need to be more aware of it than ever. In this installment, part 1 of a two-parter, Larry Loeb takes a look at what makes this network probing tool tick, and how to recognize if you're being "sniffed."