| 摘要 |
PROBLEM TO BE SOLVED: To quickly respond to even a case where an illegal program is detected in a device that is not always monitored in a computer network.SOLUTION: A control system to which a plurality of operator computers are connected includes: a gateway device connected to an external network; and a control computer. When detecting an illegal program within its own device, the gateway device transmits information indicating that the illegal program has been detected, to the control computer. When receiving the information indicating that the illegal program has been detected, the control computer outputs data, which immediately causes the generation of an alarm indicating that the illegal program has been detected, to the plurality of operator computers. |
