Discover the future of web authentication in this 39-minute conference talk from RailsConf 2023. Explore WebAuthn, a W3C standard developed by the FIDO Alliance, which enables passwordless authentication using public-key cryptography and biometrics. Learn about the limitations of traditional password-based authentication methods and understand how WebAuthn addresses security concerns while improving user experience. Gain insights into implementing WebAuthn in Ruby applications, empowering developers to enhance authentication security and usability for their users. Delve into the collaborative efforts of industry giants like Google, Mozilla, Apple, and Amazon in creating this innovative solution, and understand its potential to revolutionize online security practices.