dacalleg

This plugin allows you to interface wordpress with the <a href="https://play.google.com/store/apps/details?id=com.dacalleg.wordpressmobilesecurity" rel="nofollow ugc">“Mobile Security for WordPress”</a> app. 
After installing the plugin you will see a qr-code to frame with the app.
The plugin will periodically collect data on:
<ul>
<li>Requests</li>
<li>Status codes</li>
<li>Errors</li>
<li>Ip Addresses</li>
<li>User-Agent</li>
<li>Miscellaneous Statistics</li>
</ul>
In addition to this information from the app will be possible:
<ul>
<li>View the version of WordPress</li>
<li>View requests in real time</li>
<li>View requests grouped by IP</li>
<li>Assign a name to an IP address</li>
<li>Lock IP addresses permanently</li>
<li>Lock IP addresses temporarily</li>
<li>Enable IP addresses</li>
<li>Disable XMLRPC</li>
<li>Disable login</li>
<li>Enable login</li>
<li>View statistics</li>
<li>View how many Bots or Humans visit the site</li>
<li>Enable maximum request quotas per ip address (in case the quota will be reached the ip address will be blocked for 15 minutes)</li>
<li>View users</li>
<li>Modify users</li>
<li>View errors and where they occur</li>
<li>Manage notifications</li>
<li>Filter requests</li>
</ul>
All communication between the app and the site is done in a secure way, to access the API exposed by the plugin you need a secret key that is 
generated when the plugin is installed and communicated to the app via QR Code. You can also replace the secret key by generating a new one from the plugin preferences.
The Safe Login feature allows you to disable the login (showing a 403 screen). Very useful to avoid Brute Force attacks. 
Login can be reactivated temporarily or permanently via the app.

Mobile WP Security

This plugin exposes the rest APIs to be able to control some aspects of wordpress security via the mobile app "Mobile Security for Wordpress&quot …

Takayuki Miyauchi

This plugin allows you to switch theme according to the User Agent on the Nginx reverse proxy.
Nginx Mobile Theme’s requirements are as follows.
<ul>
<li>PHP 5.3 or later</li>
<li>WordPress 3.7 or later</li>
<li><a href="https://wordpress.org/plugins/nginx-champuru/" rel="ugc">Nginx Cache Controller</a> 2.0.0 or later</li>
</ul>
<h4>Some Features</h4>
<ul>
<li>You can flush mobile’s and pc’s each caches automatically via <a href="https://wordpress.org/plugins/nginx-champuru/" rel="ugc">Nginx Cache Controller</a>.</li>
<li>Allow you to switch theme according to the user-agent.</li>
<li>Allow you to customize multiple mobile device support via filter-hook.</li>
</ul>
<h4>Nginx Configuration</h4>
Add mobile device detection to the nginx.conf.
<pre><code>set $mobile '';
if ($http_user_agent ~* '(iPhone|iPod|incognito|webmate|Android|dream|CUPCAKE|froyo|BlackBerry|webOS|s8000|bada|IEMobile|Googlebot\-Mobile|AdsBot\-Google)') {
 set $mobile "@smartphone";
}
</code></pre>
Set proxy_cache_key.
<pre><code>proxy_cache_key "$mobile$scheme://$host$request_uri";
</code></pre>
Send custom request header to the backend.
<pre><code>proxy_set_header X-UA-Detect $mobile;
</code></pre>
Nginx Mobile Theme will switch theme when ‘@smartphone’ is received in the <code>$_SERVER['HTTP_X_UA_DETECT']</code>.
<h4>How to use</h4>
<ol>
<li>Please access to the theme-customizer in the WordPress admin area.</li>
<li>Please select Mobile Theme in the drop-down.</li>
<li>Click “Save & Publish” button to save.</li>
</ol>
<h4>Multiple mobile device support</h4>
<ol>
<li>Add custom mobile detection to the nginx.conf.</li>
<li>Add custom mobile detection to the WordPress via <code>nginxmobile_mobile_detects</code> filter-hook.</li>
</ol>
nginx.conf: 
 set $mobile ”; 
 if ($http_user_agent ~* ‘(iPhone|iPod)’) { 
 set $mobile “@smartphone”; 
 } 
 if ($http_user_agent ~* ‘iPad’) { 
 set $mobile “@tablet”; 
 }
In your custom plugin: 
 add_filter(‘nginxmobile_mobile_detects’, function(){ 
 return array(‘@smartphone’, ‘@tablet’); 
 });
<ul>
<li>As a result, allow you to select theme for @smartphone and @tablet individually in the theme-customizer.</li>
</ul>
<h4>Amimoto Support</h4>
The <a href="http://megumi-cloud.com/" rel="nofollow ugc">Amimoto</a> is a full-tuned WordPress AMI on the AWS EC2.
<ul>
<li>Uncomment /etc/nginx/conf.d/default.conf in line 17</li>
</ul>
before: 
 #include /etc/nginx/mobile-detect;
after: 
 include /etc/nginx/mobile-detect;
<ul>
<li>Add line to /etc/nginx/nginx.conf like following.</li>
</ul>
before: 
 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
 proxy_set_header Accept-Encoding “”;
after: 
 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
 proxy_set_header Accept-Encoding “”; 
 proxy_set_header X-UA-Detect $mobile; # add new line
<ul>
<li>
Define constant in the wp-config.php
define(‘IS_AMIMOTO’, true);
</li>
</ul>

Nginx Mobile Theme

This plugin allows you to switch theme according to the User Agent on the Nginx reverse proxy.

Mobile WP Security vs Nginx Mobile Theme