The Basics of Two-Factor Authentication
Two-Factor Authentication (2FA) is an essential security process that requires users to provide two distinct authentication factors to verify their identity before gaining access to an online account. Unlike traditional single-factor authentication—which relies solely on a password—2FA adds an independent security boundary.
When you enable 2FA on an online service, logging in requires both something you know (your account password) and something you have (such as a time-based code generated by your desktop or browser-based Web Authenticator).
Why Single Passwords Are No Longer Enough
In today's cybersecurity landscape, static passwords are constantly vulnerable to automated credential-stuffing bots, phishing sites, malware keyloggers, and large-scale data breaches. If an attacker acquires your password, single-factor protection instantly collapses.
With 2FA enabled, an attacker who steals your password still cannot log in because they lack your secondary authentication factor. Time-based codes automatically rotate every 30 seconds, preventing re-use even if captured.
Types of Authentication Factors
- Knowledge Factor: Something you know (e.g. passwords, PIN numbers, security questions).
- Possession Factor: Something you possess (e.g. TOTP authenticator app key, hardware security key, or Web Authenticator vault).
- Inherence Factor: Something you are (e.g. fingerprint scan, facial recognition, or iris scanning).
Getting Started with AuthBro Web Authenticator
Using AuthBro Web Authenticator, you can manage all your 2FA OTP tokens securely inside your browser with client-side Web Crypto API encryption, seamless backup exports, and zero external server tracking.