JP7472762B2 - Information processing device and program - Google Patents

Description

The present invention relates to an information processing device and a program.

Conventionally, there is known a vulnerability management system that collects vulnerability information of software implemented in information devices connected to a network and identifies the impact on the information devices based on the collected vulnerability information (see, for example, Patent Document 1).

JP 2020-21309 A

Even if an information device is determined by a conventional vulnerability management system to be unaffected by software vulnerabilities, there is a problem in that, depending on how the information device is installed, outsiders near the information device may be able to easily view or obtain information output by the information device.

The present invention was made in consideration of these points, and aims to enable information devices to be used in an appropriate installation state.

The information processing device according to the first aspect of the present invention has a location information acquisition unit that acquires location information indicating the location of an information device and at least one of the locations of furniture in a room in which the information device is installed or an opening in the room, a risk determination unit that determines a risk level corresponding to at least one of the probability that information output by the information device will be seen or obtained by an outsider or the probability that an outsider will operate the information device, based on the relationship between the location of the information device indicated by the location information and at least one of the locations of the furniture or the opening, and an output unit that outputs the risk level.

The position information acquisition unit may acquire height information indicating the position of the information device in the height direction of the room and at least one of the height of the furniture or the position of the opening in the height direction, and the risk determination unit may determine the risk based on the relationship, indicated by the height information, between the position of the information device in the height direction and at least one of the height of the furniture or the position of the opening in the height direction.

The position information acquisition unit may further acquire orientation information indicating the orientation of a display unit of the information device, and the risk determination unit may determine the risk level based on the relationship between the orientation of the display unit, the position of the information device, and at least one of the position of the fixture or the position of the opening.

The information device may further include a measuring unit that measures the number of visible people, including at least one of the number of people staying in an external area different from the room where the information device and at least one of the furniture and the opening are located and the number of people passing through the external area, and the risk determination unit may determine the risk based on the number of visible people.

The output unit may output the risk level in association with information for identifying the information device.

The location information includes information indicating the locations of the multiple information devices, and the risk determination unit determines a spatial risk level corresponding to at least one of the probability that an outsider will view or obtain information output by the multiple information devices in the room in which the multiple information devices are installed, or the probability that an outsider will operate the information devices, based on the risk levels of the multiple information devices indicated by the location information, and the output unit may output the spatial risk level.

The program according to the second aspect of the present invention causes a processor to execute the steps of acquiring location information indicating the location of an information device and at least one of the locations of furniture in a room in which the information device is installed or an opening in the room, determining a degree of danger corresponding to at least one of the probability that information output by the information device will be seen or obtained by an outsider or the probability that an outsider will operate the information device, based on the relationship between the location of the information device indicated by the placement information and at least one of the locations of the furniture or the opening, and outputting the degree of danger.

The present invention has the effect of allowing information devices to be used in an appropriate installation state.

FIG. 1 is a diagram for explaining an overview of an information processing system S according to an embodiment of the present invention. 1 is a diagram for explaining a configuration of an information processing device 10. FIG. 11 is a diagram for explaining an operation of a risk level determining unit 133 for determining a risk level of an information device. FIG. 10 is a flowchart showing an example of an operation of the information processing device 10 for determining a spatial risk level.

[Overview of Information Processing System S]
Fig. 1 is a diagram for explaining an overview of an information processing system S according to this embodiment. The information processing system S includes a plurality of information devices 1 (1a to 1e), a plurality of network devices 2 (2a to 2c), and an information processing device 10. The network device 2 is also a type of information device. As shown in Fig. 1, the network device 2 and the information processing device 10 are connected via a network N. The network N is, for example, the Internet.

Figure 1 is a top view of room R. Room R is a room in which information devices such as computers and printers are installed, such as an office or laboratory. Room R has multiple openings A (A1, A2). Openings A are parts such as doors or windows that allow people to move between the outside and the inside of room R, or to see the other side from one side. Room R is equipped with multiple desks D (D1, D2) and multiple pieces of furniture P (P1, P2). Furniture P is furniture that can be used to divide the inside of room R, such as a partition, a bookshelf, blinds, or a whiteboard.

Information device 1 is a device capable of inputting and outputting information, such as a computer or a printer. In FIG. 1, multiple information devices 1 (1a to 1d) placed on desk D are computers, and information device 1e is a printer. Information device 1d is an administrator's computer that manages multiple information devices 1 placed in room R, and stores location information indicating the location of each of the multiple information devices 1 placed in room R. Information device 1d outputs the location information to information processing device 10 via network device 2.

The network device 2 is, for example, a router or a UTM (Unified Threat Management) device, and has a function of relaying information that the information device 1 transmits and receives to other information devices or information processing devices, or a function of managing the security of the information device 1. In FIG. 1, the network device 2 is composed of a router 2a, a UTM device 2b, and a switching hub 2c.

The information processing device 10 is, for example, a computer installed outside the room R. The information processing device 10 may be a single information processing device, or may be configured with multiple information processing devices, for example, as a cloud-type server. The information processing device 10 acquires the position information output by the information device 1d, and determines the degree of danger of the information device 1 based on the relationship between the position of the information device 1 indicated by the acquired position information and at least one of the positions of the fixture P or the opening A. The degree of danger is an index corresponding to at least one of the following: the probability that an outsider will view or acquire information output by the information device 1 on a display medium such as a display or paper possessed by the information device 1, or the probability that an outsider will operate the information device 1.

When determining the risk level of information device 1a, information processing device 10 determines the distance between information device 1a and opening A1 based on the position of information device 1a and the position of opening A1 indicated by the acquired position information. Information processing device 10 also determines the proportion of the display area that is visible from opening A1 based on the opening range of opening A1 and the position of the display of information device 1a.

The information processing device 10 determines that the shorter the specified distance, the higher the probability that an outsider can enter the room R and operate the information device 1a. Furthermore, the information processing device 10 determines that the greater the proportion of the display area that is visible, the higher the probability that an outsider can view information output to the display by the information device 1a through the opening A1. The information processing device 10 determines the degree of danger for the information device 1a based on the probability that an outsider can operate the information device 1a and the probability that an outsider can view the display. The higher the probability that an outsider can operate the information device 1a or the probability that an outsider can view the display, the higher the value that the information processing device 10 determines the degree of danger corresponding to the information device 1a to be.

In this way, the information processing device 10 determines the degree of danger of the information device 1 based on the position of the information device 1 and at least one of the positions of the opening A and the fixture P, and can notify the manager of the information device 1 whether the information device 1 is installed in an appropriate position. The manager of the information device 1 can install the information device 1 in an appropriate position based on the acquired degree of danger of the information device 1.

[Configuration of information processing device 10]
2 is a diagram for explaining the configuration of the information processing device 10. The information processing device 10 has a communication unit 11, a storage unit 12, and a control unit 13. The control unit 13 has a position information acquisition unit 131, a measurement unit 132, a risk determination unit 133, and an output unit 134.

The communication unit 11 includes a communication device for transmitting and receiving information via the network N. The communication device is, for example, a LAN (Local Area Network) controller. The storage unit 12 has storage media such as a ROM (Read Only Memory), a RAM (Random Access Memory), and an SSD (Solid State Drive). The storage unit 12 stores programs executed by the control unit 13.

The control unit 13 is, for example, a CPU (Central Processing Unit). The control unit 13 executes the programs stored in the storage unit 12, thereby functioning as a position information acquisition unit 131, a measurement unit 132, a risk determination unit 133, and an output unit 134.

The position information acquisition unit 131 acquires position information indicating the position of the information device 1 and the position of at least one of the furniture P in the room R in which the information device 1 is installed or the opening A of the room R. The position information is, for example, information represented by horizontal and vertical coordinates in the room R, and is information that can be used to identify the distance between the information device 1 and at least one of the furniture P or the opening A. The position information may include information indicating the positions of multiple information devices 1. The position information acquisition unit 131 acquires, for example, position information input by an administrator to the information device 1 via the communication unit 11.

The position information acquisition unit 131 may acquire height information indicating the position of the information device 1 in the height direction of the room R and at least one of the height of the furniture P and the position of the opening A in the height direction. For example, in the case of the information device 1a shown in FIG. 1, the height information of the information device 1 is information indicating the height distance between the floor surface of the room R and the top surface of the desk D1, and the height distance between the floor surface of the room R and the top surface of the information device 1a when the information device 1a is installed.

The height information of the furniture P is information that indicates the height distance between the floor of the room R and the top surface of the furniture P1 when the furniture P is installed. The height information of the opening A is information that indicates the height distance between each of the top and bottom sides of the opening A and the floor of the room R. For example, if the opening A2 shown in FIG. 1 is a window, and the height distance between the bottom side of the opening A2 and the floor of the room R is 90 cm and the height distance between the top side of the opening A2 and the floor of the room R is 200 cm, then the height information of the opening A2 is "90 cm to 200 cm."

The position information acquisition unit 131 may further acquire orientation information indicating the orientation of a display unit of the information device 1. For example, if the information device 1 is a computer, the display unit is a display on which the computer outputs information, and if the information device 1 is a printer, the display unit is a tray on which the printer outputs printed paper or an operation screen for operating the printer. The orientation information is, for example, information indicating the orientation in which the display unit displays information toward the user of the information device 1.

The measurement unit 132 measures the number of visible people, including at least either the number of people staying in an external area where the information device 1 installed in the room R in which the information device 1 and at least one of the fixture P and the opening A are installed can be seen, or the number of people passing through the external area. The external area is, for example, a room other than the room R in which the information device 1 is installed, a passage such as a corridor, or outdoors.

For example, when information device 1a can be seen through opening A1 from outside room R shown in FIG. 1, measurement unit 132 measures the number of people visible in the area that can travel to and from room R through opening A1. Measurement unit 132 may measure the number of people visible based on the number of people appearing in an image captured by a surveillance camera (not shown) installed inside or outside room R, for example, or may measure the number of people visible based on information obtained from a sensor that detects people.

The danger level determination unit 133 determines the danger level of the information device 1 based on at least one of the position information, height information, or orientation information acquired by the position information acquisition unit 131, or the number of visible people measured by the measurement unit 132. FIG. 3 is a diagram for explaining the operation of the danger level determination unit 133 in determining the danger level of the information device 1. FIG. 3(a) shows the evaluation items and the evaluation results associated with each other for the danger level determination unit 133 to determine the danger level of the information device 1. FIG. 3(b) shows an example of the danger level determined by the danger level determination unit 133 based on the results of evaluating the evaluation items shown in FIG. 3(a).

In FIG. 3(a), the number of an evaluation item, the evaluation item, and the evaluation result are associated with each other. There are three types of evaluation results: "Normal," "Caution," and "Danger." For example, when evaluating the evaluation item "Enter through the door to obtain," the danger level determination unit 133 identifies the distance between the information device 1 and opening A based on the position of the information device 1 and the position of opening A indicated by the position information. If the identified distance is less than 5 m, the danger level determination unit 133 evaluates the information device 1 as "Danger." On the other hand, if the identified distance is 10 m or more, the danger level determination unit 133 evaluates the information device 1 as "Normal."

Figure 3(b) shows an example of the risk level when multiple information devices 1 (1a-1c) are installed in a room with window 1, door 1, and door 2. In Figure 3(b), the evaluation item number, evaluation item, score of each of the multiple information devices 1, and evaluation coefficient are associated with each other. The evaluation items are the same as those shown in Figure 3(a), and each of the multiple information devices 1 is evaluated for its relationship with each of the multiple openings A.

The score is determined based on the evaluation shown in Figure 3(a), and is "0 points" if the evaluation is "normal", "50 points" if the evaluation is "caution", and "100 points" if the evaluation is "dangerous". The evaluation coefficient is a numerical value indicating the importance of each of the multiple evaluation items, and an evaluation item with a larger numerical value indicates a higher degree of danger than an evaluation item with a smaller numerical value.

For example, when determining the risk level of information device 1a, risk level determination unit 133 determines the scores for evaluation items numbered R1 to R10. Risk level determination unit 133 multiplies the score for each evaluation item numbered R1 to R10 by the evaluation coefficient associated with each evaluation item. For example, in the evaluation item numbered R5, information device 1c has a score of 100 points and an evaluation coefficient of 0.2, so the multiplied numerical value (hereinafter sometimes referred to as the multiplied value) is 20.

Then, the risk determination unit 133 determines the risk level by adding up the numerical values obtained by multiplying the scores of each evaluation item from number R1 to number R10 by the evaluation coefficient associated with each evaluation item. Specifically, in the information device 1c shown in FIG. 3(b), the multiplied values of number R5 and numbers R7 to R9 are 20, 30, 10, and 10, respectively. Therefore, the risk determination unit 133 adds up these multiplied values and determines the risk level of information device 1c to be 70. The higher the risk level, the higher the numerical value indicated.

In this way, the risk level determination unit 133 determines the risk level based on the position indicated by the position information, and can notify the administrator of the information device 1 of, for example, whether it is easy for an outsider to view the information output by the information device 1 through opening A or to operate the information device 1 by entering through opening A.

The risk level determination unit 133 may determine a risk level corresponding to at least one of the probability that the information output by the information device 1 is seen or obtained by an outsider, or the probability that the information device 1 is operated by an outsider, based on the relationship between the position of the information device 1 indicated by the position information and at least one of the positions of the fixture P or the opening A.

The risk level determination unit 133 determines the risk level of the information device 1, for example, based on whether or not furniture P is installed between the position of the information device 1 and the position of the opening A. For example, when determining the risk level of the information device 1c shown in FIG. 1, the risk level determination unit 133 determines the risk level of the information device 1c to be "caution" or "danger," which indicate an assessment of a high risk, based on the fact that furniture P is not installed between the position of the information device 1c and the position of the opening A2.

On the other hand, when determining the risk level of information device 1d shown in FIG. 1, the risk level determination unit 133 determines the risk level of information device 1d to be "normal," which indicates an assessment of a low risk, based on the fact that furniture P1 is installed between the position of information device 1d and the position of opening A2. In this way, by determining the risk level based on the position of information device 1, the position of opening A, and the position of furniture P, the risk level determination unit 133 can increase the accuracy of the risk level of information device 1.

When the position information acquisition unit 131 acquires height information, the risk determination unit 133 may determine the risk based on the relationship between the position of the information device 1 in the height direction indicated by the height information and at least either the height of the fixture P or the position of the opening A in the height direction. The risk determination unit 133 determines the risk of the information device 1 based on, for example, whether the height of the fixture P installed between the position of the information device 1 and the position of the opening A is higher or lower than the position of the information device 1 in the height direction.

For example, suppose that the height of fixture P installed between information device 1d and opening A shown in FIG. 1 is higher than the position of information device 1d in the height direction, and therefore the proportion of the area of the display unit of information device 1d that can be seen from opening A is less than 60%. In such a case, risk determination unit 133 determines the risk level of information device 1d to be "normal," which indicates an evaluation when the risk is low. In this way, by determining the risk level based on height information, risk determination unit 133 can determine the risk level with high accuracy, including whether the display unit from which information device 1 outputs information can be seen from opening A.

When the position information acquisition unit 131 further acquires orientation information, the risk determination unit 133 may determine the risk based on the relationship between the orientation of the display unit of the information device 1, the position of the information device 1, and at least one of the position of the fixture P or the position of the opening A. In this case, the risk determination unit 133 calculates the proportion of the area of the display unit of the information device 1 that is visible from the opening A based on, for example, the orientation information, and evaluates the evaluation item associated with the number C1 or C2 shown in FIG. 3(a) based on the calculated proportion of the area of the display unit.

For example, the orientation of the display unit of information device 1c shown in FIG. 1 is opposite to that of opening A2. Therefore, the area of the display unit of information device 1c that can be viewed from opening A2 is 0%. Therefore, the risk determination unit 133 determines the risk level of information device 1c to be "normal," which indicates an evaluation of a low risk. In this way, the risk determination unit 133 can determine the risk level with high accuracy by determining whether or not an outsider can view the information output by the information device from opening A based on the orientation information of the display unit.

When the risk determination unit 133 acquires the number of visible people measured by the measurement unit 132, the risk determination unit 133 may determine the risk level based on the number of visible people. In this case, the risk determination unit 133 evaluates, for example, an evaluation item associated with number C5 shown in FIG. 3(a). For example, when the acquired number of visible people is large, the risk determination unit 133 determines the risk level to indicate a high risk, and when the acquired number of visible people is small, the risk determination unit 133 determines the risk level to indicate a low risk. In this way, by determining the risk level based on the number of visible people, the risk determination unit 133 can determine the risk level including the environment outside the room R in which the information device 1 is installed.

When the location information acquired by the location information acquisition unit 131 includes information indicating the locations of multiple information devices 1, the risk determination unit 133 may determine a spatial risk level corresponding to at least one of the probability that an outsider will view or acquire information output by multiple information devices 1 in a room R in which the multiple information devices 1 are installed, or the probability that an outsider will operate the information devices, based on the risk levels of the multiple information devices 1 indicated by the location information.

When multiple information devices 1 (1a to 1c) are installed, as shown in FIG. 3(b), for example, the spatial danger level is expressed as a numerical value obtained by adding or multiplying the danger levels of each of the multiple information devices 1, or as an average value of the multiple danger levels. In FIG. 3(b), the spatial danger level is 240, obtained by adding the danger level of information device 1a (90), the danger level of information device 1b (80), and the danger level of information device 1c (70).

In this way, the risk level determination unit 133 determines the spatial risk level, so that, for example, the manager of room R can comprehensively know the risk of the multiple information devices 1 installed in room R. Furthermore, in the case of a building having multiple rooms, for example an office building, the risk level determination unit 133 determines the spatial risk level of each of the multiple rooms, so that, for example, the manager can know which rooms have information devices 1 installed appropriately and which rooms have information devices 1 not installed appropriately.

The output unit 134 outputs the risk level determined by the risk level determination unit 133. When outputting the risk level, the output unit 134 may output the risk level in association with information for identifying the information device 1. For example, when the acquired location information includes the location of the information device 1 and information for identifying the information device 1 in association with each other, the output unit 134 outputs the risk level of the information device 1 in association with the information for identifying the information device 1. When the risk level determination unit determines a spatial risk level, the output unit 134 may output the spatial risk level.

[Flowchart of information processing device 10]
4 is a flowchart showing an example of an operation of determining a spatial risk level by the information processing device 10. The position information acquisition unit 131 acquires position information of the information device 1, the opening A, and the furniture P (S11). The risk level determination unit 133 specifies the distance between the opening A and the information device 1 based on the positions of the information device 1, the opening A, and the furniture P indicated by the acquired position information (S12).

The position information acquisition unit 131 acquires height information of the information device 1, the opening A, or the fixture P (S13). Next, the position information acquisition unit 131 acquires orientation information of the display unit of the information device 1 (S14). The risk level determination unit 133 identifies the proportion of the area of the display unit visible from the opening A based on the position of the information device 1 in the height direction, the height of the fixture P, and the position of the opening A in the height direction indicated by the acquired height information, and the orientation of the display unit of the information device 1 indicated by the orientation information (S15).

The measurement unit 132 measures the number of people who can be seen (S16). The danger level determination unit 133 determines the danger level of the information device 1 based on the distance between the information device 1 and the opening A, the proportion of the display part that can be seen from the opening A, and the number of people who can be seen measured by the measurement unit 132. If multiple information devices 1 are set in the room R, the danger level determination unit 133 determines the danger level of each of the multiple information devices 1 (S17).

The danger level determination unit 133 determines the spatial danger level by adding up the danger levels of each of the multiple information devices 1 installed in the room R (S18). The output unit 134 outputs the spatial danger level determined by the danger level determination unit 133 (S19). If an operation to end the process of determining the spatial danger level has not been performed (NO in S20), the information processing device 10 repeats the processes from S11 to S19. If an operation to end the process of determining the spatial danger level has been performed (YES in S20), the information processing device 10 ends the process.

[Modification]
In the above description, the information processing device 10 is configured as a single information processing device or a cloud-type server installed in a location different from the room R in which the information device 1 is installed, but this is not limiting. For example, the information device 1 or the UTM device 2b may function as the information processing device 10.

[Effects of the information processing device 10]
As described above, the information processing device 10 has the position information acquisition unit 131 that acquires position information indicating the position of the information device 1 and at least one of the positions of the furniture P in the room R in which the information device 1 is installed or the opening A of the room R. Then, the risk level determination unit 133 determines a risk level corresponding to at least one of the probability that information output by the information device 1 will be seen or acquired by an outsider or the probability that the information device 1 will be operated by an outsider, based on the position of the information device 1 indicated by the position information and at least one of the position of the furniture P or the position of the opening A.

By determining the risk level of information device 1 in this manner, information processing device 10 can notify the administrator of information device 1 of the risk level, which is an index of whether the installation state of information device 1 is appropriate. Then, the administrator who receives the notification can install information device 1 in an appropriate location based on the obtained risk level.

Although the present invention has been described above using embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist of the invention. For example, all or part of the device can be configured by distributing or integrating functionally or physically in any unit. In addition, new embodiments resulting from any combination of multiple embodiments are also included in the embodiments of the present invention. The effect of the new embodiment resulting from the combination also has the effect of the original embodiment.

REFERENCE SIGNS LIST 1 Information device 2 Network device 10 Information processing device 11 Communication unit 12 Storage unit 13 Control unit 131 Position information acquisition unit 132 Measurement unit 133 Risk determination unit 134 Output unit

Claims (7)

a position information acquisition unit that acquires position information indicating a position of an information device and at least one of a position of a fixture in a room in which the information device is installed and a position of an opening in the room;
a measurement unit that measures a visible number of people including at least one of the number of people staying in an external area different from the room in which the information device and at least one of the furniture and the opening are provided and from which the information device is visible, and the number of people passing through the external area;
a risk determination unit that determines a risk level corresponding to at least one of the probability that information output by the information device will be seen or obtained by an outsider or the probability that the information device will be operated by an outsider, based on a relationship between the position of the information device indicated by the position information and at least one of the positions of the fixture or the position of the opening, and the number of visible persons;
An output unit that outputs the degree of risk;
An information processing device having the above configuration. a position information acquisition unit that acquires position information indicating positions of a plurality of information devices and at least one of a position of fixtures in a room in which the information devices are installed and a position of an opening in the room;
a risk determination unit that determines a risk level corresponding to at least one of a probability that information output by the information device will be seen or obtained by an outsider or a probability that the information device will be operated by an outsider, based on a relationship between a position of the information device indicated by the position information and at least one of a position of the fixture or a position of the opening;
An output unit that outputs the degree of risk;
having
the risk level determination unit determines a spatial risk level corresponding to at least one of a probability that an outsider will view or obtain information output by the plurality of information devices in the room in which the plurality of information devices are installed, or a probability that an outsider will operate the information devices, based on the risk levels of the plurality of information devices whose positions are indicated by the location information;
The output unit outputs the spatial risk level.
Information processing device. the position information acquisition unit acquires height information indicating a position of the information device in a height direction of the room and at least one of a height of the furniture or a position of the opening in the height direction;
the risk determination unit determines the risk based on a relationship between a position of the information device in the height direction, which is indicated by the height information, and at least one of a height of the fixture or a position of the opening in the height direction.
3. The information processing device according to claim 1 or 2 . the position information acquisition unit further acquires orientation information indicating an orientation of a display unit of the information device;
the risk determination unit determines the risk level based on a relationship between an orientation of the display unit, a position of the information device, and at least one of a position of the fixture and a position of the opening.
The information processing device according to claim 1 . the output unit outputs the degree of risk in association with information for identifying the information device.
The information processing device according to claim 1 . The processor:
acquiring location information indicating a location of an information device and at least one of a location of a fixture in a room in which the information device is installed and an opening in the room;
measuring a visible number of people including at least one of the number of people staying in an external area different from the room in which the information device and at least one of the fixture and the opening are provided and from which the information device can be seen, and the number of people passing through the external area;
determining a degree of risk corresponding to at least one of the probability that information output by the information device will be seen or obtained by an outsider or the probability that the information device will be operated by an outsider, based on a relationship between the position of the information device indicated by the position information and at least one of the positions of the fixture or the position of the opening, and the number of visible persons;
outputting the degree of risk;
A program for executing. The processor:
acquiring location information indicating locations of a plurality of information devices and at least one of a location of fixtures in a room in which the information devices are installed and a location of an opening in the room;
determining a degree of risk corresponding to at least one of the probability that information output by the information device will be seen or obtained by an outsider and the probability that the information device will be operated by an outsider, based on a relationship between the position of the information device indicated by the position information and at least one of the positions of the fixture and the position of the opening;
outputting the degree of risk;
Run the command,
in the step of determining the degree of danger, a spatial danger level is determined based on the degrees of danger of the plurality of information devices whose positions are indicated by the location information, the spatial danger level corresponding to at least one of a probability that an outsider will view or obtain information output by the plurality of information devices in the room in which the plurality of information devices are installed, or a probability that an outsider will operate the information devices;
In the step of outputting the risk level, the spatial risk level is output.
program.

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