Facebook - Authy

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Setting up Authy - Two-factor authentication (2FA)

The Most Important App You Don't Have on Your Phone (Yet)

Authy set up guide - efex

What is Two-Factor Authentication (2FA) and Why Should I Use it? – Geek Girl Tech

2 Factor Authentication Setup Guide

How to use Authy: A guide for beginners

Authy set up guide - efex

Search Your Authy 2FA Tokens on iOS and Android - Authy