Abstract: A risk analyzer analyzing risk of a system including N (natural number greater than or equal to 2) elements connected includes: an inputter receiving, as inputs, a cost of each N element for increasing a safety degree against a threat to security, a connection relationship of at least part of the N elements, an entry point being an element serving as an entry to the system, and a defense target being an element protected in the system; an identifier identifying, based on the cost of each N element and the connection relationship, a target element of one or more elements requiring a minimum total cost necessary for cutting off a target path from the entry point to the defense target by increasing a safety degree of one or more elements on the target path to a threshold value or more; and an outputter outputting element information indicating the target element.

Abstract: An electronic control unit includes: a first determination unit which determines whether a message received is an address claim message; a second determination unit which determines, when it is determined that the message received is an address claim message, whether a device name included in the address claim message received is a predetermined device name; and a third determination unit which performs a predefined determination process, when it is determined that the device name included in the address claim message received is the predetermined device name, and determine whether the address claim message received is an unauthorized message according to a result of the predefined determination process.

Abstract: A risk analyzer analyzing risk of a system including N (natural number greater than or equal to 2) elements connected includes: an inputter receiving, as inputs, a cost of each N element for increasing a safety degree against a threat to security, a connection relationship of at least part of the N elements, an entry point being an element serving as an entry to the system, and a defense target being an element protected in the system; an identifier identifying, based on the cost of each N element and the connection relationship, a target element of one or more elements requiring a minimum total cost necessary for cutting off a target path from the entry point to the defense target by increasing a safety degree of one or more elements on the target path to a threshold value or more; and an outputter outputting element information indicating the target element.

Abstract: A risk analyzer analyzing a risk of a system including N (natural number greater than or equal to 2) elements connected includes: an inputter receiving, as inputs, a degree of safety of each N element against a threat to security, a connection relationship of the N elements, an entry point being an element serving as an entry to the system, and a defense target being an element protected in the system; an identifier identifying, among one or more paths from the entry point to the defense target, based on the degrees of safety and the connection relationship of the N elements, a target path in which a total sum of the degrees of safety of elements passed while the target path extends from the entry point to the defense target is lower than a threshold value; and an outputter outputting path information on the target path.

Abstract: An electronic control unit includes: a first determination unit which determines whether a message received is an address claim message; a second determination unit which determines, when it is determined that the message received is an address claim message, whether a device name included in the address claim message received is a predetermined device name; and a third determination unit which performs a predefined determination process, when it is determined that the device name included in the address claim message received is the predetermined device name, and determine whether the address claim message received is an unauthorized message according to a result of the predefined determination process.

Abstract: In the case where selection of an icon representing an air conditioner is sensed in a region corresponding to a certain room on a floor plan, a region corresponding to the certain room on the floor plan is switched to an adjustment region for changing the set temperature of the air conditioner. In the case where it is sensed that a contact made to a touch-panel display moves within the region corresponding to the certain room, a control command for changing the set temperature of the air conditioner in accordance with a distance in which the contact moves is transmitted to the network.

Abstract: In the case where selection of an icon representing an air conditioner is sensed in a region corresponding to a first room on the floor plan that is larger than a predetermined area, the region corresponding to the first room is switched to an adjustment region for changing the set temperature of the air conditioner. In the case where selection of the icon representing the air conditioner is sensed in a region corresponding to a second room on the floor plan that is equal to or smaller than the predetermined area, an adjustment screen for changing the set temperature of the air conditioner installed in the region corresponding to the second room is displayed on the display screen.

Abstract: A control method causes a computer of an information apparatus to: display a display screen representing a floor plan on the display; display device icons on the display screen, the device icons including an air purifier icon; when selection of the air purifier icon is sensed, display an operation screen for operating an air purifier corresponding to the selected air purifier icon on the display, the operation screen being displayed on the display screen and outside of a region corresponding to a room where the selection of the air purifier icon is sensed; output a control command for operating the air purifier to the network based on an operation on the operation screen; and display an operation state of the air purifier in the region corresponding to the room where the selection of the air purifier icon is sensed based on the operation on the operation screen.

Abstract: A control method causes a computer of an information apparatus to: display a display screen representing a floor plan on a display; display on the display screen device icons, the device icons including a dehumidifier icon; when selection of the dehumidifier icon is sensed, display on the display an operation screen for operating a dehumidifier corresponding to the dehumidifier icon, the operation screen being displayed on the display screen and outside of a region corresponding to a room where the selection of the dehumidifier icon is sensed; output a control command for operating the dehumidifier to a network based on an operation on the operation screen; and display an operation state of the dehumidifier in the region corresponding to the room where the selection of the dehumidifier icon is sensed based on the operation on the operation screen.

Abstract: A control method according to the present disclosure causes a computer of an information apparatus to: display on the display a display screen representing a floor plan of a building; display on the display screen device icons respectively representing the one or more target devices, the device icons being movable when dragged and including an air purifier icon that represents an air purifier; and when it is sensed that the air purifier icon is selected, and is moved on the floor plan, display an effect range in which an effect of the air purifier extends in a region corresponding to a room in the floor plan where a drop of the air purifier icon is sensed.

Abstract: A control method according to the present disclosure causes a computer of an information apparatus to: display on a display a display screen representing a floor plan of a building; display on the display screen device icons respectively representing one or more target devices, the device icons being movable when dragged and including a humidifier icon that represents a humidifier; and when it is sensed that the humidifier icon is selected, and is moved on the floor plan, display an effect range in which an effect of the humidifier extends, in a region corresponding to a room in the floor plan where a drop of the humidifier icon is sensed.

Abstract: In the case where selection of a device icon representing an air conditioner among one or more target devices is sensed in a region corresponding to one room on a floor plan, an operation screen for operating the air conditioner corresponding to the selected device icon, is displayed on a display screen. This operation screen includes an image representing an air flow direction of air output from the air conditioner.

Abstract: In the case where selection of a device icon that represents an air conditioner and that is displayed in a region corresponding to one room on a floor plan is sensed in the region corresponding to the one room, an operation screen for operating the air conditioner corresponding to the selected device icon is displayed. In the case where a temperature is set on the basis of an operation of the operation screen, a control command for setting to the air conditioner the set temperature is output to the network, and information related to an operation state of the air conditioner is displayed in the region corresponding to the one room based on the operation of the operation screen.

Abstract: A memory card and a recording/playback device are provided that are capable of deterring a memory card manufacturer from illicitly storing a same media ID on a plurality of memory cards. A memory card (100) includes a media ID storage module unit (610) and a memory unit (120). The media ID storage module unit (610) includes a media ID storage unit (611) that stores therein a media ID that is specific to the memory card, and a certification unit (609) that generates certification information that certifies the validity of the memory card based on the media ID. The memory unit (120) includes an encrypted content storage unit (122) for storing encrypted digital content.

Abstract: In the case where selection of a device icon that represents an air conditioner and that is displayed in a region corresponding to one room on a floor plan is sensed in the region corresponding to the one room, an operation screen for operating the air conditioner corresponding to the selected device icon is displayed. In the case where a temperature is set on the basis of an operation of the operation screen, a control command for setting to the air conditioner the set temperature is output to the network, and information related to an operation state of the air conditioner is displayed in the region corresponding to the one room based on the operation of the operation screen.

Abstract: A content selection apparatus selects a target content item which is a content item to be presented to a user, from a plurality of content items. The plurality of content items are sorted into a plurality of management units according to a creation date and time of each content item. The content selection apparatus includes a selection unit that selects a predetermined number of management units in ascending order of the number of sorted content items, and selects a content item that belongs to the selected management units as the target content item.

Abstract: In the case where selection of an icon representing an air conditioner is sensed in a region corresponding to a certain room on a floor plan, a region corresponding to the certain room on the floor plan is switched to an adjustment region for changing the set temperature of the air conditioner. In the case where it is sensed that a contact made to a touch-panel display moves within the region corresponding to the certain room, a control command for changing the set temperature of the air conditioner in accordance with a distance in which the contact moves is transmitted to the network.

Abstract: In the case where selection of an icon representing an air conditioner is sensed in a region corresponding to a certain room on a floor plan, an operation screen for changing the setting of the air conditioner installed in the region corresponding to the certain room is displayed as overlapped on a display screen. An effect range, in which an effect due to an operation of the air conditioner extends based on the setting contents, is displayed in the region corresponding to the certain room.

Abstract: In the case where selection of an icon representing an air conditioner is sensed in a region corresponding to a first room on the floor plan that is larger than a predetermined area, the region corresponding to the first room is switched to an adjustment region for changing the set temperature of the air conditioner. In the case where selection of the icon representing the air conditioner is sensed in a region corresponding to a second room on the floor plan that is equal to or smaller than the predetermined area, an adjustment screen for changing the set temperature of the air conditioner installed in the region corresponding to the second room is displayed on the display screen.

Abstract: A content presentation method includes: obtaining behavior history information of a user; determining a frequency for generating content based on the behavior history information and generating the content at the determined frequency, the content being for interaction with the user made by a device; and presenting the generated content to the user by distributing the generated content. For example, the determining further includes determining a type of the content to be generated based on the behavior history information and generating the content of the determined type.