Click fraud is when people or bots click on your ads without any real interest in buying, just to drain your budget. It happens more than most people think. Marketers deal with it by using click fraud detection tools like ClickCease or TrafficGuard, which block suspicious traffic automatically. Google also has its own system that filters out invalid clicks and refunds them. Checking your traffic sources and watching for unusual spikes in clicks with zero conversions is another sign something is off. Have you ever suspected click fraud in a campaign?