I'm not sure if there already is something like that but I have no idea with what keywords can I find something like that, I failed to find on google.
However the problem is I keep seeing from time to time huge list of "user_register_form post blocked by CAPTCHA module:..." with 3 second intervals and up to ~20-30 attempts in a row. After that a new "bot" will be registered.
Is there anything to block/disable the ip/form after many fail captchas for say 5-10 min.
Thanks in advance.