Silkalns

WP Chill

Cristian Raiber

<p>A very useful plugin for everyone using WordPress. Adds reCaptcha security to the WordPress login form, register form and comment form. This plugin could help your blog get rid of a lot of spam comments or brute-force attacks.</p>
<p>Nothing gets passed it if the reCaptcha doesn’t validate.</p>
<p>A few notes about the plugin:</p>
<ul>
<li>Supports audio or image captcha types</li>
<li>Can generate the reCaptcha image / audio type in a number of predefined languages</li>
<li>Adds reCaptcha protection to the WordPress login form</li>
<li>Adds reCaptcha protection to the WordPress register form</li>
<li>Adds reCaptcha protection to the WordPress comment form</li>
<li>Adds reCaptcha protection to the WordPress recover password form</li>
</ul>


Uber reCaptcha

This plugin adds the reCaptcha form to the WordPress login form, recover password form, register form and comment form.

Reuben Gunday

<p>This plugin avoids bots posting comments directly on your site.</p>
<h4>How to use</h4>
<p>After installing and activating the plugin, go to Settings->General and enter your unique <code>Combat Comment Bot Secret Key</code></p>
<h4>How it Works</h4>
<p>This plugin adds <a href="http://markjaquith.wordpress.com/2006/06/02/wordpress-203-nonces/" title="nonces" rel="nofollow ugc">nonces</a> using the secret key to the comment form for unique validation.</p>
<h4>Feedback & Question</h4>
<p>For questions or suggestions, tweet us <a href="http://twitter.com/revood" title="@revood" rel="nofollow ugc">@revood</a></p>


Combat Comments Bot

This plugin avoids bots posting comments directly on your site.

Uber reCaptcha vs Combat Comments Bot