Yes, most people underestimate the effort online fraudsters will go to in order to commit fraud - whether it is consumer fraud, phishing and identity theft, or click fraud.
Remember, just as advertisers go to extreme efforts to drive their business with online ad campaigns using web analytics, bid optimization and SEO, fraudsters are also driving their "business" - and their "business" is stealing from you - and they also measure their efforts against ROI, just as online advertisers do. When the ROI is high for criminals who commit click fraud, the efforts required to steal your money are just a part of doing business.
Fortunately, online advertisers no longer need to feel powerless against click fraud. As a member of the Click Fraud Network, you can monitor your online campaigns for click fraud, get detailed and actionable reporting, and mitigate the impact on your campaigns - without adding friction to your campaigns.