Protect your site with a video CAPTCHA solution that provides better security and is easier to read for your visitors.
Publishers have a choice between old style, static CAPTCHA security that is easily broken and frustrating to users OR NuCaptcha.
NuCaptcha Free is a free, easy to use, service for WordPress users.
NuCaptcha Free provides a complete video CAPTCHA solution with:
For more information please view the plugin page
See a NuCaptcha in action and find out more at: http://www.nucaptcha.com/