Denis V (Artprima)

Each time you login to your blog WordPress creates a session cookie which is used to authenticate you. 
By default if someone somehow gets your cookies he (or she) is able to use them to compromise your blog 
(even without having to know your password!). To prevent this you may want to make your auth cookies 
ip-dependent so that they could be valid only for that ip which you used during login.
Use this plugin only if you have a static IP or dynamic which doesn’t change too often. Otherwise, you’ll 
have to enter your login and password each time your IP changes.

IP Dependent Cookies

Plugin IP Dependent Cookies makes your Wordpress installation more secure adding your IP to salt (which makes cookies IP-dependent).

World Web Technology

jtayler

TruAnon Digital Identity “badge-of-trust” Plugin
A simple way to create a trusted ecosystem on social community sites or anywhere trust and accountability are valued.
NOTE: Before installing this plugin, check with your preferred social profile plugin to be certain TruAnon is not already seamlessly integrated.
TruAnon offers your members safety, privacy and respect:
<ol>
<li>The Right to Privacy 
Assert legitimacy without requirement to reveal personally identifying or private information</li>
<li>The Right to Self Identify 
Genuine identity free from ID cards, review or approval from authority</li>
<li>The Right to Self-Ownership 
Respectful separation of identity out from profiles and accounts to ensure owner control</li>
</ol>
TruAnon creates the trusted ecosystem legitimate members crave.

TruAnon Identity

A simple profile badge that creates a trusted environment by letting members visibly back their own claim of identity.

IP Dependent Cookies vs TruAnon Identity