#Airbnb cut authentication code by 60% - while making authentication more…

Airbnb Cuts Authentication Code by 60% with Server Driven Architecture

Airbnb redesigned its authentication architecture around server driven flows and policy based challenge selection. The new Flexible Authentication system reduced authentication related code by 60%, cut the web client bundle by 100 KB, improved successful authentication by 2.6%, reduced duplicate account creation by 27%, and lowered OTP costs by 11%.