You want that plugin or you want to know about the plugin?
If you want that plugin the just edit your question and instead of asking do you know, write "Anyone have this plugin" or "I want this Plugin".
And if you want to know about that plugin then your question is right and from what I understand this plugin will notify users when the system detects any suspicious activity like login from a different location "IP". Its basically a safety feature for users as once they know someone have access to their account they can change their password immediately.
