4login

Secure your site with a strong password — without the hassle of remembering it. 
With 4Login, you get simple yet powerful authentication that connects to an external server. 
Simply create your own pattern to generate a dynamic password that updates every 60 minutes.
Please refer to the <a href="https://www.4login.jp/" rel="nofollow ugc">operation Instructions </a> for instructions on how to use 4Login.
<h3>External services</h3>
This plugin connects to an external API to enable 4Login authentication. 
When logging in with 4Login, the plugin sends the 4Login App Service ID, the user’s email address, and a dynamic password . 
These credentials are entered directly within the WordPress login interface.
This authentication service is provided by Passlogy. 
For more information, please review our 
<a href="https://www.4login.jp/en/auto_terms/" rel="nofollow ugc">Terms of Service</a> and 
<a href="https://www.4login.jp/privacy-policy/?en=app" rel="nofollow ugc">Privacy Policy</a>.

4Login for Secure And Smart Access

4Login will give you an easy and powerful authentication (connect to an external server for authentication).

cornelinux

WordPress Strong Authentication lets you authenticate users with a second 
factor of possession.
Only if the user is able to provide this second factor, he is allowed to login. 
Such a second factor can be an OTP display card, an OTP hardware token, a Yubikey, 
a smartphone App like the Google Authenticator or access to an mobile phone 
to receive an SMS or access to an email account.
The use then needs to authenticate with his wordpress password and in addition with 
a code, generated by his device or sent via email or SMS.
All the devices are managed in the backend (privacyIDEA)[http://privacyidea.org], the Strong Authentication 
plugin forwards authentication requests to this backend, which you can easily run 
on the same machine or anywhere in your network.
<h3>Configuration</h3>
Please add at least a hostname or IP address of your backend server privacyIDEA. 
You need to enter the hostname together with the protocol and the port, if it is 
not a standard port. 
If you are using self signed certificates, you should disable the verification of hostname and peer.
Please note: You need to have the same users in the LinOTP server. 
You can achieve this by configuring an SQL Resolver and presetting this to 
Wordpress.
<h3>Troubleshooting</h3>
If you misconfigured the plugin, you might not be able to authenticate anymore!
So it is always a good idea to add some users to the “excluded users” list. 
These users will be able to authenticate without a second factor and 
even if the authentication server should be down.
Another possibility is to disable the plugin by removing or renaming the 
plugin directory. 
In this case is will fall back to the old wordpress passwords.

WordPress Strong Authentication

Wordpress Strong Authentication lets you authenticate users with a second

4Login for Secure And Smart Access vs WordPress Strong Authentication