A phishing filter is a program in your internet browser whose purpose is to help protect your computer from phishing sites.The official Internet Explorer 7 site offers this explanation: "... the new phishing filter in internet explorer 7 consolidates the latest industry information about fraudulent websites and shares it with you to proactively warn and help protect you while you browse."

The phishing filter is turned on by default when you first use Internet Explorer 7. For phishing filter options, including turning it on or off; reporting a suspicious site to microsoft; and more, go to the tools menu in the upper-right toolbar, and select phishing filter.

For more information on using the phishing filter feature visit the official IE 7 site.