There has been an article about Adsense click fraud in the Digit Magazine November 2007 edition. And I'm quoting the main contents if that article here. Manish Arora, a security analyst developed this script and the guys at digit got to test it.
It works like this. You set up an Adsense account and implement it in your blog,site etc. Since then, whenever visitor clicks link out to another site, an image or a video, these clicks are registered as a valid adsense click. Need I say more? Manish Arora had made thousands of dollars with this technique but still haven't took any of the money. The test team at Digit have successfully tested his script. Manish wrote to Google sating that he can provide them with the mechanism, but they haven't accepted it yet.
What if I get that code ?
