Phishing is the term for a type of scam. Phishers use fraudulent means to acquire personal information from unsuspecting consumers. For instance, scammers may create a website with a nearly identical URL to the PayPal web address. The scammers then send out phony emails informing the recipients that there is a problem and they need to update their account. The email will provide a link to the phony website, which is also created to look just like the real site. If you were to receive such an email, follow the link and "log in" to the page, the phishing scammers would then have your PayPal user name, password and access to your entire account.
The Internet Explorer Phishing Filter works in the background while you browse the Internet. The filter scrutinizes the web pages you visit, watching for suspicious content or features to protect you from phishing scams and identity theft. If the filter finds questionable material, it will provide a warning to you.
If you receive a barrage of false warnings, however, or the filter seems to cause your browser to lag or freeze, you may decide to stop using it. If so, you will need to know how to disable the Phishing Filter in Internet Explorer.