SECURITY DEVICE, ATTACK RESPONSE PROCESSING METHOD, COMPUTER PROGRAM, AND STORAGE MEDIUM
|Numéro de publication||2021/019635|
|Statut||Délivré - en vigueur|
|Date de dépôt||2019-07-29|
|Date de publication||2021-02-04|
|Propriétaire||OMRON CORPORATION (Japon)|
AbrégéThe present invention aims to provide a security device capable of considering potential attacks on a device network, ascertaining the degree of risk of such attacks, and promptly implementing suitable responses to attacks in accordance with the degree of risk. The security device, which is included in a device network having at least one device connected via a communications path, comprises: an attack detection unit 23 that detects attacks on the basis of errors in the device network 2 ; a network information acquisition unit 21 that obtains information pertaining to the state of devices or sensors in the device network 2; a degree-of-risk calculation unit 22 that calculates the current degree of risk in the device network 2, on the basis of the network information; and an attack response determination unit 24 that, if an attack is detected by the attack detection unit 23, determines the attack response to be implemented against the attack, on the basis of the degree of risk calculated by the degree-of-risk calculation unit 22.