Chad Butler

This plugin is a password generator that creates random passwords with using words, numbers, and special characters.
Default random passwords can be difficult to for users to use (and remember – if they don’t change it). WordPass simplifies this process by using words to create passwords. Passwords will be generated in the style of 2*Kayak29, 2Bigcranium2#, or %36POTATOE6.
This plugin works with WordPress as well as with any plugin that uses the WordPress password generation function.
WordPass allows you to create a custom list of words to be used in password generation.
The plugin will create random passwords from your word list and apply numbers as well as capitalization. How these settings are applied can be set in the plugin’s settings. The recommended setting is “random” for best security.
Note: this plugin is great for membership sites where subscribers or low level users need easy to remember passwords. But you should use secure (and possibly more complex) passwords for higher level users, especially administrators. Use common sense in the application of this plugin!

WordPass

Creates word-based passwords for WordPress.

Simon Blackbourn

This plugin redirects newly-registered users to the Admin -> Edit Profile page when they first log in. Until they have changed their password, they will not be able to access either the front-end or other admin pages. An admin notice is also displayed informing them that they must change their password.
New administrators must also change their password, but as a safety measure they can also access the Admin -> Plugins page.
<h4>Translations included</h4>
<ul>
<li>Català (Catalan)</li>
<li>中文 (Chinese)</li>
<li>Nederlands (Dutch)</li>
<li>Français (French)</li>
<li>Deutsch (German)</li>
<li>Ελληνικά (Greek)</li>
<li>Hebrew</li>
<li>Hindi</li>
<li>Magyar (Hungarian)</li>
<li>Italiano (Italian)</li>
<li>日本語 (Japanese)</li>
<li>Khmer</li>
<li>한국어 (Korean)</li>
<li>Lietuvių kalba (Lithuanian)</li>
<li>македонски јазик (Macedonian)</li>
<li>Polski (Polish)</li>
<li>Português do Brasil (Brazilian Portuguese)</li>
<li>Português (Portuguese)</li>
<li>Română (Romanian)</li>
<li>Русский (Russian)</li>
<li>Español (Spanish)</li>
<li>Türkçe (Turkish)</li>
</ul>
New translations are very welcome – please submit them via <a href="http://wp-translations.org/" rel="nofollow ugc">WP-Translations</a>. This plugin’s WP-Translations page is <a href="https://www.transifex.com/projects/p/force-password-change/" rel="nofollow ugc">transifex.com/projects/p/force-password-change</a>

Force Password Change

Require users to change their password on first login.

WordPass vs Force Password Change