In June of 2006, while working to resolve some indexing issues for a client, I discovered a bug in Google's algorithm that allowed 3rd parties to literally hack a web page out of Google's index and search results. I notified a contact at Google soon after, once I managed to confirm that what we thought we were seeing was really happening.

The problem still exists today, so I am making this public in the hope that it will spur some action.

I have sat on this information for more than a year now. A good friend has allowed his reputation to suffer, rather than disclose what we knew. I continue to see web sites that are affected by this issue. After giving Google more than a year to resolve the issue, I have decided that the only way to spur them to action is to publish what I know.

Source:
http://www.seofaststart.com/blog/google-proxy-h**king
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