A comprehensive guide to designing two-factor authentication (2FA) systems, covering the historical evolution from hardware PINs to modern adaptive methods. Compares all major 2FA methods (SMS OTP, email OTP, TOTP apps, push notifications, biometrics, hardware keys) across security, usability, popularity, and recovery options.
Table of contents
The evolution of 2FAMethods of two-factor authenticationOver 200k developers and product managers use LogRocket to create better digital experiencesUser flows for each two-factor methodBest practices for designing a 2FAFrequently asked questions about 2FA designConclusionLogRocket helps you understand how users experience your product without needing to watch hundreds of session replays or talk to dozens of customers.Sort: