Google Proxy Hacking: How A Third Party Can Remove Your Site From Google SERPs by Dan Thies gives us a detailed look at the serious dangers of proxy hacking.
Dan’s detailed article shows the history on how he discovered the issue. He then goes into why the hacking currently works in Google. Dan is eager to encourage the search engines to do something about the issue. But Dan has provided details on how to help protect yourself with the help of some friends.