Sniffing for intruders
Honeypots are quickly gaining acceptance in corporate environments as highly accurate early warning systems. Because they aren't production assets, any activity on a honeypot can immediately be considered suspicious and the appropriate defensive response can be initiated. There are about a dozen serious vendors in the honeypot field, including KeyFocus's KFSensor, Network Security Software's Spector 7.0, and the open source favorite Honeyd, but Palisade Systems' SmokeDetector is the only hardware offering.