If you’re Google Chrome browser users, here is an extension called Disconnect that lets you stop such fraud or phishing activities for ever that without affecting your browsing experience much.
The extension Disconnect did this by blocking identifying cookies. It stops major third parties and search engines, including Google, Yahoo, Facebook, Twitter, Digg, etc, from tracking you.
The extension comes with a toolbar button, so you can easily block or unblock services, by clicking the toolbar button. You can install Unblock in your Google Chrome browser at here.