Click Fraud is a much, much bigger problem than you think.

Most people have heard of click fraud, but few people understand just how big a problem it is. If you run online advertising, the chances are you’re already a victim of click fraud.

It impacts both search and display networks – sometimes for different reasons – and the companies you’d think would be most concerned about this wide-ranging fraud are often strangely silent on the issue and muted in their responses.