This plugin adds shieldpass two-factor authentication using access cards for different WordPress admin access users into the WordPress login page.
Create an account at https://www.shieldpass.com and buy your ShieldPass access cards.
After signing up and activating your account, download the ShieldPass WordPress plugin zip file.
Install and activate the ShieldPass WordPress plugin.
In the users setting, select ShieldPass Configuration and fill in the "Public Key" and "Secret Key" generated in your ShieldPass administrative panel. Also, enter the WordPress user and corresponding ShieldPass Card ID value that you'd like to require ShieldPass login.
Log out of your WordPress. Upon logging back in, you'll be prompted to superimpose your access card using ShieldPass's two-factor authentication service.