Am 08.06.13 23:33, schrieb Mutuku Ndeti:
https://drupal.org/project/spamicide
A technique I have seen recommended, but have not tried for myself, is to create a field in each protected form that is invisible but a bot would complete. It wouldn't bypass humans paid to bypass your antispam measures though.
the honeypot module mentioned in other posts uses this method too, I guess thats part of its success
Servus Franz