| 摘要 |
Systems and methods are provided for enhancing security by providing additional authentication factors. Prior to authentication, a user may enroll a device from which access to a service or application is authorized. During authentication, the authentication system may retrieve the location of the enrolled device and generate one or more questions that only a user in that location can answer. The user may additionally or alternatively enroll a movement signature with an authentication server as an authentication factor. The user may set a pattern for device movement. During authentication, the user moves the device in the pattern. The device then transmits the movement signature for authentication. |
