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Two Factor (2FA) Authentication via Email

Login Protect

miniOrange's Google Authenticator – WordPress Two Factor Authentication – 2FA, Two Factor, OTP SMS and Email | Passwordless login

Wordfence Login Security

Shield Security – Smart Bot Blocking & Intrusion Prevention Security

Security Optimizer – The All-In-One WordPress Protection Plugin

Solid Security – Password, Two Factor Authentication, and Brute Force Protection

ActiveAuth

WP 2FA – Two-factor authentication for WordPress

All-In-One Security (AIOS) – Security and Firewall

WordPress 2-step verification

Rublon Multi-Factor Authentication (MFA)

Senpai Software – Two-factor authentication (2FA) with a key file

WP 2FA with Telegram

ALMEFY: Two-Factor Authentication in one step. Without password​

Two Factor Authentication (2FA , MFA, OTP SMS and Email)

Woocommerce 2 Factor Authenticator

Ecommerce – Two Factor Authentication  

WP Admin Two Factor Authentication

mOTP Spam Blocker

Teddy ID Lite

Teddy ID

Surbma | Secure Login

WordPress Strong Authentication

SnapID Two-Factor Authentication

-WP Security Hub

SecSign

Pontopass

PassClip Auth for WordPress

Per User Prompt for Google Authenticator

Encourage User Activation for Google Authenticator

GetOTP OTP Verification

Fortytwo – Two-Factor Authentication

DH Rename Login URL and Two Factor Authentication

Acceptto Multi Factor Authentication

2FA – Two-factor authentication for WordPress – in one Step. And without password. Free for private use or small businesses