DEVICE, SYSTEM, AND METHOD OF USER AUTHENTICATION BASED ON USER-SPECIFIC CHARACTERISTICS OF TASK PERFORMANCE

摘要

Devices, systems, and methods of detecting user identity, authenticating a user to a computerized service or to an electronic device, differentiating between users of a computerized service, and detecting possible attackers or possible fraudulent transactions. A method includes: generating a user authentication session that requires a user to enter a secret by performing a task; monitoring the user interactions during task performance; extracting a user-specific behavioral characteristic, and utilizing it as a factor in user authentication. The task requires the user to perform on-screen operations via a touch-screen or touchpad or mouse or other input unit of the electronic device, or to move in space or tilt in space the entirety of the electronic device in a way that causes inputting of the secret data-item.