EvilZone

I've been thinking of making a website and did some research. What I found was kind of scary, it seems that adsense closes accounts that get too many clicks (spikes). I've seen posts from website owners that lost money in 5 digits. What immediately came to mind is that it would be easy to make a software that does this. It would be easy to "kill" the competition by removing their income if it relies on ads. Do I need to be aware of such things when making my website? Is there already software like this out on the web? If my website is successful and somebody decides its too successful, how can I protect myself against such an attack.