Matoma

Matoma Two-Factor Authentication extends the login process by a 2nd factor to achieve increased security. 
After the user name and password are requested, a random 8-digit code is generated and sent depending on the selected method. 
The user receives his one-time password either via e-mail or SMS (ClickSend.com account required).

Matoma Two-Factor Authentication

Matoma Two-Factor Authentication extends the login process by a 2nd factor to achieve increased security. After the user name and password are request …

Marius Bezuidenhout

Two-Factor-Extensions provides sms functionality to the Two-Factor plugin. In order to send sms messages this plugin 
will require a plugin that provides sms messaging features. Currently it supports only supports WP SMS.

Extensions for Two-Factor

This plugin provides extended features to the Two-Factor plugin.

Matoma Two-Factor Authentication vs Extensions for Two-Factor