As you might know, solving CAPTHCAs is not really a difficult task for the underground economy. Initially, they wrote code to do it â€“ but then learned that it is easier to outsource the puzzle solving to cheap labor. For a few dollars you can have a CAPTCHA farm solving 1000 CAPTCHAs for you. Fairly simple and efficient.
I just saw a new approach to the same problem, which I personally pretty much like. It is solving a very difficult puzzle (like put the right toppings on a pizza) â€“ something you should look at:
- 18 Extremely Strange (Yet Real) CAPTCHA Messages (techeblog.com)