We seem to have a shy but annoying piece of malware hanging out on thoughtworks.com. As far as we can tell, it manifests itself as a hidden iframe that redirects you to a site that hosts malware. We’re a bit vague on this, as it only appears rarely so on.
http://content.usatoday.com/topics/article/Culture/Computers+and+Internet/Google+Inc/02dG42F0nWa1w/1