As an advertiser, click fraud can be the bane of your existence. Click fraud is way of falsely raising the number of clicks that you get on a pay-per-click ad. Most of the time, it happens because your competitor is trying to drive up your costs. Ad publishers can also click on the ads to create more revenue for themselves. But the threat of click fraud is not a real reason to avoid pay-per-click advertising. While it is a cause for concern, there are ways that you can protect yourself from these fraudsters. Like any other type of security, it requires you to be proactive.