> Almost all turnkey CAPTCHA services can be solved for pennies. There is one area where even pennies can be a barrier: DDoS. Paying a few pennies per captcha

> Almost all turnkey CAPTCHA services can be solved for pennies. There is one area where even pennies can be a barrier: DDoS. Paying a few pennies per captcha can add up to a lot when you want to complete millions of them.