Two-Factor Authentication (2FA) is a security method that requires users to verify themselves in two different ways before accessing their account or completing a transaction. Common 2FA combinations include something you know (like a PIN or password), something you have (a mobile device or a security token), and/or something you are (biometric data like a fingerprint or selfie). 2FA significantly enhances account security even when one factor, like a password, has been compromised.
Use case/ examples for Two-Factor Authentication (2FA)
Account security: Protecting online banking, email, and social media accounts by requiring the use of both a password and a secondary verification factor such as an SMS code, authenticator app, or biometric scan.
Transaction verification: Adding a second authentication layer before processing financial transactions, such as requiring users to confirm actions through a separate device or another 2FA verification method.
Enterprise access control: Securing employee access to company systems and the data stored within by implementing 2FA that combines the use of password credentials with hardware tokens, mobile authenticators, or biometric verification.
