About reCAPTCHA

reCAPTCHA is a fraud detection service that stops bots and other automated attacks while approving valid site members.

You can add reCAPTCHA fields to your signup and login forms that site visitors need to check. If they don't check the field, they won't be able to continue to the member's area of your site. 

You can choose to show the reCAPTCHA boxes only to suspected bots, or to everyone who signs up or logs in to your site.