Just as Google and Yahoo! that indicate when a site can be potentially dangerous,people from Microsoft has been working on and now Live Search search engine will display a warning message in the results pages that may be potentially dangerous to the user.
Thus, if the user tries to click a result that has been identified as evil, the search engine will display a message that warns that the link has been disabled for security reasons. Even so, the user can ignore the warning and visit the respective page by clicking on another link.
It is good news that this kind of functions begin to integrate into most search engines because it is well known that computer criminals use SEO techniques to position the misleading pages.
Link:Battling the plague of the web