For many publishers of blogs Google AdSense is our main source of income and therefore any impact on it that could have the effect of disabling it would also constitute a great disappointment, a major disorder and a severe blow to the waterline of our income. How to protect AdSense account against possible attacks from third parties. Very simple. In AdSense account have a section where we can tell Google which sites are allowed to display ads on our own. All we have to do is insert Hence all our domains, thus what ads will appear, but the clicks from that site will not be counted, eliminating any risk to ourselves. Let's see how: 1. Access our AdSense account. 2. We go to the tab "Account Settings" in the left sidebar. 3. Within this tab menu go to "Access and authorization", almost bottom. Now all we have to do is click on the "edit" next to the "Allow any site to show ads for my account" and enter domains in the text box (no need to put the www, with sufficient mastery). That's it, click "Save" and ready, clicks will only count when they occur on the sites that we have indicated, thus avoiding risks in our account. If you want to adds anything else please suggest
I found this thread at adsense forums:Prevent Invalid Clicks On Your Adsense Ads and looks like it's a bit more prominent way to protect adsense account.
By default it is good, if you feel that any site is displayed many time and they don't pay good, you may disallow that..
Nice idea. I got a problem once, years ago because of this, and this seems like a solution worth implementing.