Explore a groundbreaking approach to account recovery presented at USENIX Enigma 2017 by Facebook Security Engineer Brad Hill. Delve into the limitations of traditional methods like security questions, email reset links, and SMS codes. Discover a new lightweight, self-assembling protocol that empowers users to regain access through their preferred services while prioritizing privacy. Learn how this innovative solution addresses the challenges of federated identity systems and offers potential for securing end-to-end encryption keys. Gain insights into improving account lifecycle management and enhancing user experience in online authentication.