I stubled on this and thought it wise to share with the family. How to restrict and authorize your AdSense Ad Code to specific sites and stop malicious use of your Ad code by others. 1. Log into your Adsense account. 2. Go to Home > Account settings 3. Click Edit in the " Access & authorization " section, next to "Sites authorized to show ads," 4. Check the box marked Only allow certain sites to display ads for my account. 5. Enter the URL of the sites that you want to authorize, 6. Once your have mentioned all your partner sites then simply hit Save and you are all done!