| 摘要 |
A system, a medium, and a method involve' a communication interface of a server device that receives first activity data associated with a first activity of an account and second activity data associated with a second activity of the account. A processor of the server device determines a first location of the first activity from the first activity data and a second location of the second activity from the second activity data. An authentication circuit of the server device determines a first authentication of the first activity based at least on the first activity data. The authentication circuit determines a second authentication of the second activity based on at least one of the first authentication, the first location, and the second location. A transmitter of the communication interface transmits an indication of the second authentication to a client device. |
