FIDO vs FIDO2: Understanding the Evolution of Passwordless Authentication
Introduction As organizations and developers continue shifting toward passwordless authentication, two standards often come up: FIDO and FIDO2. While closely related, these standards represent different stages in the evolution of secure, phishing-resistant login technology. This article explains the technical and strategic differences between FIDO (U2F) and FIDO2, their roles in modern authentication, and how to choose the right standard for your app or enterprise environment. What Is FIDO? FIDO (Fast IDentity Online) originally referred to a family of open standards developed by the FIDO Alliance to improve authentication security through: ...