What Is Two-Factor Authentication (2FA Security) ?

This article provides an overview of two-factor authentication (2FA), comparing common methods (SMS codes, authenticator apps, hardware tokens, push notifications, biometrics), describing security benefits and typical attacks (SIM cloning/swapping, social engineering, phishing), and highlighting biometric and MFA developments alongside privacy concerns; it concludes by promoting SecurityScorecard’s security ratings platform to help organizations assess and prioritize remediation of security weaknesses.