Microsoft is addressing security issues in the Beta 2 issue of its new IE8 browser, which is due next month.
Smart Screen is a filer, based on the Phishing Filter in IE7, and designed to screen out known phishing URLS, but with improved ability to analyze entire URL strings for phishing detection.
The new beta will also have a feature warning users when they’ve downloaded from a site that’s passing malware.
There should also be a filter to prevent type-1 cross-site scripting attacks. These happen when a page from a malware site is swapped with a page from a compromised site without the user knowing.