Anti-Phishing Domain Advisor is checking sites against phishing and malware.
In the field of computer security, phishing is the criminally fraudulent process of attempting to acquire sensitive information such as usernames, passwords and credit card details by masquerading as a trustworthy entity in an electronic communication.
Communications pretending to be from popular web sites, banking sites, auction sites, online payment processors or IT administrators are commonly used to lure the unsuspecting public.
The Anti-Phishing Domain Advisor ensures you navigate the Web safely by protecting you from "phishing sites" (copycats of legitimate sites that steal your personal info) or "malware sites" designed to harm your computer.
The Anti-Phishing Domain Advisor is continuously checking sites that you visit against a list of reported phishing and malware sites. The list is provided by Panda Security - one of the world's leading IT security provider - and is updated every 5-20 minutes.
This would bring up a yahoo search page randomly on sites i had visited before without problems i.e. Tumblr and I was then unable to visit them because of it. At first I was unaware of this program being the cause as it was installed on my PC through another program I wanted but upon removing it I am able to go to sites just fine.
good