Nuance Gatekeeper is a fully scalable security solution designed for the cloud. As an AI‑based solution, Nuance Gatekeeper makes decisions using an unparalleled set of characteristics and traits about the user. This includes the fastest and most accurate voice biometrics engine in the world—Nuance Lightning Engine—and a combination of other layered security factors, like conversational biometrics. Gatekeeper offers frictionless authentication enabling organizations to mitigate fraud losses, improve operational efficiency and increase customer satisfaction across both voice and digital channels.