已經有不少網友使用過 "網路剪刀手(NetCut)", 所以 "Arp Spoofing" 或許已經不能算是什麼大新聞, 但可能您正忙得不得了, 根本沒空去瞭解詳情, 不論如何, 請暫時休息一下, 看看駭客們在玩什麼把戲, 否則怎麼知道是否有人正在窺視你?

SANS Institute - Intrusion Detection FAQ: Why your switched network isn't secure.
Switched networks lose their security advantage due to packet-capturing tool
Think You're Safe from Sniffing?

dsniff
opening up: Sniffing in a Switched Network