wpgear

Ext Security. 
You may not know that your site has already been hacked. 
There are many ways to add a new user to the system, without your knowledge. 
This plugin will promptly notify you that a new user has registered on your site. 
Now the console has a widget that displays all new users.
All new users will be highlighted in red until Admin confirm each of them in User-Profile. 
With the active Option: “Deny Login if User is not confirmed”, you will sleep much more peacefully.
<ul>
<li>This plugin has already helped out many times when some of our sites were hacked. But we quickly found out about it. And we were able to fast stop the problem.</li>
</ul>
<h4>Features</h4>
<ul>
<li>Automatic scanning of the Users list on a schedule, and detect unauthorized addition to the DB.</li>
<li>Notification to Administrator by e-mail.</li>
<li>The “Users” Table has a sortable Column “Confirm” ON/OFF. Users who are not Verified are highlighted in red.</li>
<li>Option: “Allow to change Settings – only for Admin”. Default = ON</li>
<li>Option: “Deny Login if User is not confirmed”. Default = ON</li>
<li><a href="https://wordpress.org/plugins/adaptive-login-action" rel="ugc">Integration with “Adaptive Login Action”</a></li>
</ul>

New Users Monitor

Ext Security. Automatic scanning of the Users list, detect unauthorized addition. Informs immediately Admin by email. Informative Widget.

dominicfallows

WP-Disclaim-Me is a plugin that lets you create a disclaimer that a visitor to your blog / website must accept before they can access your posts and pages.
WP-Disclaim-Me has been tested in WordPress version 2.5 or above. It is in beta so comments are very welcome!
Features
<ul>
<li>Testing with WordPress 2.8</li>
<li>Set your own disclaimer text from the admin pages</li>
<li>Set your own accept button text from the admin pages</li>
<li>NEW: WYSIWIG disclaimer text edit in the admin pages</li>
</ul>
COMING SOON
<ul>
<li>Add image to disclaimer from the admin pages</li>
<li>Change style/CSS of disclaimer from the admin pages</li>
</ul>

WP-Disclaim-Me

WP-Disclaim-Me is a plugin that lets you create a disclaimer that a visitor to your blog / website must accept before they can access your posts and p …

New Users Monitor vs WP-Disclaim-Me