> What's wrong if a bot buys some of your inventory, pays for it and everything? In the book "Spam Nation" (Brian Krebs), a group of students try to fight fake

> What's wrong if a bot buys some of your inventory, pays for it and everything? In the book "Spam Nation" (Brian Krebs), a group of students try to fight fake online pharmacies. To do this, they created an army of bots and placed thousands of fake orders every day. The goal was to create so many fake orders that the human processors (many fake pharma stores were not fully automated) had to spend a significant amount of time clearing out the fake orders before getting to the real orders. Now imagine this on a legitimate website. Not every website is automated, not every organization has the same resources that Amazon does. CAPTCHA's are a great way to ensure orders are coming from real people. They could still be faked, but the bar is a bit higher.