Information from Wikipedia about Phishing
"Phishing is the attempt to acquire sensitive information such as usernames, passwords, and credit card details (and sometimes, indirectly, money) by masquerading as a trustworthy entity in an electronic communication. Communications purporting to be from popular social web sites, auction sites, banks, online payment processors or IT administrators are commonly used to lure unsuspecting public."
Never encounter a phishing website?
PWS:HTML/Phish.BE is actually a phishing page which mainly aims at stealing passwords. When infected, the page may use a seemingly legitimate form to cheat you into filling in your personal information. The content may contain names, passwords, address, and credit card details. In the name of a legal Lloyds TSB bank website, you can hardly notice if you're cheated. Once you fill in your sensitive information, you probably will lose all of your money!