Abstract: A transfer device receives data from a transmission source device, and stores the program group and initial setting information, the transfer device includes: wherein each program in the program group matches a reception protocol pertaining to reception of data from the transmission source device, a processing protocol pertaining to the process, or a transmission protocol pertaining to transmission of data to the destination device, wherein the initial setting information defines designation information that designates, for each protocol, the program matching the protocol, and wherein the processor executes: a reception process of receiving input of a first setting parameter to a first program that matches the reception protocol and the transmission protocol; an acquisition process of acquiring first designation information for designating the first program with reference to the initial setting information; and an activation process of activating the first program using the first designation information and t

Abstract: A version checking apparatus that checks subject software version information, and easily decides whether or not the subject software version information matches version information of reference software having been found to have a vulnerability, e.g.

Abstract: A detection apparatus 30 stores a determination list (A1601) for determining whether there is unauthorized communication, receives a communication packet (A1501) flowing in a control system, determines whether a valid data pattern in the determination list (A1601) and a data pattern relating to the communication packet (A1501) match each other. When the valid data pattern in the determination list (A1601) and the data pattern relating to the communication packet do not match each other, the detection apparatus 30 calculates a similarity degree between the valid data pattern in the determination list and the data pattern relating to the communication packet, and determines whether the similarity degree satisfies a predetermined condition. When the similarity degree is determined not to satisfy the predetermined condition, the detection apparatus 30 determines that the communication packet (A1501) is an unauthorized communication packet.

Abstract: A detection apparatus 30 stores a determination list (A1601) for determining whether there is unauthorized communication, receives a communication packet (A1501) flowing in a control system, determines whether a valid data pattern in the determination list (A1601) and a data pattern relating to the communication packet (A1501) match each other. When the valid data pattern in the determination list (A1601) and the data pattern relating to the communication packet do not match each other, the detection apparatus 30 calculates a similarity degree between the valid data pattern in the determination list and the data pattern relating to the communication packet, and determines whether the similarity degree satisfies a predetermined condition. When the similarity degree is determined not to satisfy the predetermined condition, the detection apparatus 30 determines that the communication packet (A1501) is an unauthorized communication packet.