What an utterly pathetic scenario you present. Obviously you're blissfully unaware of the current security trend of site spoofing, 'phishing', url spoofing, DNS spoofing, zone spoofing and on and on and on. and of course now very the latest 'security expert spoofing' ! <!-- "Your subject makes it sound like this is a spoofing vulnerability" You have to look at the prerequisite attack scenario. You are surfing to some random site and out of nowhere it opens WellsFargo.com or WindowsUpdate. At this point you are thinking one of 2 things, either "What the.. I didn't go to WindowsUpdate/WellsFargo .. Let me just close that window .. Damn popups" or "Hey how nice, WindowsUpdate/WellsFargo magically appeared in front of me and I didn't even intend to go there .. I was just surfing for porn .. Let me hurridly download some stuff from there and give it my account details" --> -- http://www.malware.com