by andersvinther2 on WordPress.org
Whitelist User IP addresses. If a user logs in from an unknown IP the plugin sends an email to the user and optionally the admin with a one-time key.

The admin panel of the plugin showing the default values.
WP Login Security 2 provides enhanced security by requiring users to whitelist their IP address.
If the IP address is not recognized, the plugin will send an email to the user with a link that contains a one-time key. Optionally the blog administrator can also be notified.
If a user logs in from a known IP address no further action is required.
What does this Plugin do?
Updates from the original plugin
This plugin is based on the original WP Login Security plugin developed by joshuascott94.
Since the original plugin is not supported any longer we took over and made a few updates: