Protection from login, registration and reset-password brute-force attacks. No captcha.

Adam Sewell

tinyShield – Simple. Focused. Security.

Fast, effective, realtime, and crowd sourced protection for WordPress. Easily block bots, brute force attempts, exploits and more without bloat.

EverPress

BruteGuard – Brute Force Login Protection

BruteGuard is a cloud powered brute force login protection that shields your site against botnet attacks.

Svetoslav Marinov

Orbisius Messenger

Allows users to send email messages to each other as long as they know their usernames.

toxnico

WP Login Door

Adds a secret URL key to access the login page and lets you disable XML-RPC, protecting against bruteforce attacks.

Simon Prosser

WP-DenyHosts

Mitch

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Guard protects your wp-admin against bruteforce attacks.

brutebank

BruteBank – WP Security & Firewall

Blocking website attacks from your phone, designed for WordPress.

webvitaly

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<li><a href="http://web-profile.net/donate/" title="Donate" rel="nofollow ugc">Donate</a></li>
<li><a href="http://web-profile.net/wordpress/plugins/" title="WordPress plugins" rel="nofollow ugc">WordPress plugins</a></li>
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Why humans should prove that they are humans by filling captchas? Lets bots prove that they are not bots with adding javascript to their user-agents!
Security-Protection blocks and stops brute-force attacks. 
<a href="https://wordpress.org/plugins/security-protection/faq/" rel="ugc">Want to read more how Security-Protection plugin works</a>?
<ul>
<li>no captcha, because brute-force attacks is not users’ problem</li>
<li>no options, because it is great to forget about brute-force attacks completely</li>
</ul>
Plugin is easy to use: just install it and it just works.
Important: delete ‘admin’ username if you have it on your site. More than 90% of brute-force attacks try to crack the ‘admin’ username.
Few of the most commonly used and worst passwords. Do not use them or similar:
<ul>
<li>123456</li>
<li>p@s$w0rd</li>
<li>qwerty</li>
<li>qwe123</li>
<li>admin123</li>
<li>iloveyou</li>
<li>letmein</li>
</ul>
<h4>Useful:</h4>
<ul>
<li><a href="https://wordpress.org/plugins/page-list/" title="list of pages with shortcodes" rel="ugc">“Page-list” – show list of pages with shortcodes</a></li>
<li><a href="https://wordpress.org/plugins/iframe/" title="embed content" rel="ugc">“Iframe” – embed content</a></li>
<li><a href="http://web-profile.net/wordpress/plugins/" title="WordPress Pro plugins" rel="nofollow ugc">WordPress Pro plugins</a></li>
</ul>

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