12 lines
587 B
TeX
12 lines
587 B
TeX
\subsection{CAPTCHA farms}
|
|
CAPTCHA farms are run using cheap labor available in third-world countries. When
|
|
an attacker seeks the services of a CAPTCHA farm, they are provided access to an
|
|
web API to forward CAPTCHA challenges. A labourer working in the farm solves the
|
|
CAPTCHA and the API responds with the solution. The whole process takes less
|
|
then a minute to complete and costs only a fraction of what premium services
|
|
like reCAPTCHA charge.
|
|
|
|
Overall, this attack is very feasible and cheap and is frequently used to bypass
|
|
traditional CAPTCHA systems.
|
|
|
|
%% TODO insert price charts
|