Allows administrators to either nag users to enable two-factor authentication, or force them to enable it.
Modifies the Google Authenticator plugin so that only users with 2FA enabled are prompted for the authentication token.
Use the SecSign ID two-factor authentication on your WordPress site to enable easy and secure login using your iPhone or Android phone.
Complete and Easy-To-Use WordPress Security. Unrestricted Access. No Premium Features.
Easily add Acceptto multi factor authentication to your WordPress website. Enable multi factor authentication for your admins and/or users.
The Sucuri WordPress Security plugin is a security toolset for security integrity monitoring, malware detection and security hardening.
Sovay secures your identity and your WordPress site logins. Authenticate once and securely access all your sites — without password hassles.
Instantly protects all accounts with effortless, email-based two-factor authentication; optional mobile app for more security; no tokens.
A simple plugin that adds two step verification via selected instant messenger.
SUA – Secure User Account WordPress Login is a plugin that will allow you to secure your account
Secure two-factor that people love to use: strong authentication without passwords or tokens; single sign on/off; magical user experience.
Plugin for implementing two factor authentication with missed calls. Verification can be set on various screens as per users choice.
This plugin enables two-factor authentication for WordPress logins with mobile phone push over data, text messages, and even a phone call.
Allows you to verify telephone number when they submit a message using Contact Form 7
Sucuri Security Website Firewall (CloudProxy) is a subscription based WAF and Cloud-based IPS designed to provide optimal security to everyday website
Single Sign-On service for secure login to web sites by tapping just one button on your phone, no password required.
Proper security for your WordPress site.
WordPress Strong Authentication lets you authenticate users with a second factor of possession like OTP, EMail or SMS. Only if the user is able to pro
Ozioma is a unified enterprise messaging platform for Bulk SMSing, phonebook contact services, SMS campaign, Free SMS, SMS forwarding, etc.
Protect your WordPress using Pontopass' two-factor authentication and security policies.
OneID is an easy-to-integrate plug-in that lets your users log in with a click or tap, eliminating the need for usernames and passwords.
Two-factor authentication for your blog. Stop hackers before they get into your administration section!
A plugin to implement Vasco's MYDIGIPASS.com two-factor authentication service into your blog.