What Is Two Factor Authentication (2FA)?

May 3, 2023

Two-factor authentication (2FA) is a security mechanism that requires a person to provide two different authentication factors to verify their identity. Most 2FA checks ask the user to enter a password as the first factor and then provide a second unique identifier, such as a security token, code sent to a specific mobile phone, or biometric data (face or fingerprint scan). Other common names for 2FA are two-step verification and dual-factor authentication.

Anastazija is an experienced content writer with knowledge and passion for cloud computing, information technology, and online security. At phoenixNAP, she focuses on answering burning questions about ensuring data robustness and security for all participants in the digital landscape.