With Hizzle Captcha, you can easily add a CAPTCHA to your BuddyPress forums.
The setup process takes a few seconds, and this guide walks you through the whole process.
Installation
You need to have both Hizzle captcha and BuddyPress installed and activated.
If not, log in to the WordPress Admin area of your website. Navigate to Plugins > Add New, then search for Hizzle Captcha and BuddyPress. Install and activate both plugins
Configuring BuddyPress
Navigate to CAPTCHA > settings. Scroll to the show reCAPTCHA on settings and check the BuddyPress checkboxes.

Don’t forget to save your changes.

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