| 摘要 |
[Problem] To improve safety during execution of a transaction according to an instruction, after a login, from a user who has logged in to a server. [Solution] A transaction system (101) is provided with a server (121), a first terminal (141), and a second terminal (161). A user logs in to the server (121) via the first terminal (141). Upon reception of a transaction instruction from the user via the first terminal (141), the server (121) produces a notice to be delivered to the second terminal (161). Upon delivery of the notice from the server (121), the first terminal (141) or the second terminal (161) prompts the user to provide an input for checking details of the transaction. If the input from the user matches the details of the transaction, the server (121) executes the transaction. |
