Gilbert Wondracek in the Economist
“Gilbert Wondracek at the Vienna University of Technology in Austria and his colleagues built a history-stealing website aimed at groups on Xing, a business-orientated social network. Mr Wondracek’s analysis of over 6,500 Xing groups, containing a total of more than 1.8m users, suggested that his rogue site would be able to determine the identity of around four in ten visitors. A trial run, in which Mr Wondracek invited colleagues who use Xing to visit his history-stealing site, showed this estimate to be about right. The vulnerability he exploited has since been addressed by the engineers behind several browsers, including Firefox and Safari, but has so far not been fixed in Microsoft’s Internet Explorer.” (verbatim quote from The Economist, Monitor: Anonymous no more, May 10, 2010, http://www.economist.com/node/18304046?story_id=18304046)