COMMUNICATION DESTINATION LIMITING SYSTEM, COMMUNICATION DESTINATION LIMITING DEVICE, MANAGEMENT DEVICE, COMMUNICATION DESTINATION LIMITING METHOD, AND COMPUTER PROGRAM

To provide a communication destination limiting system, a communication destination limiting device, a management device, a communication destination limiting method, and a computer program that suppress a decrease in server availability due to a malware attack.SOLUTION: A communication destination limiting system includes: a receiving unit that receives data, transmission source information indicating a data transmission source, and transmission destination information indicating a data transmission destination; a transmission unit that transmits the received data to the transmission destination; a determination unit for determining whether or not the data received by the receiving unit is transmitted by the transmission unit to the transmission destination indicated by the transmission destination information that the receiving unit has received, on the basis of white list information including white list transmission source information indicating the transmission source that may transmit the data to the receiving unit and white list transmission destination information indicating the transmission destination that may transmit the data received by the receiving unit, and transmission source information received by the receiving unit; and a white list information updating unit that updates the white list information on the basis of the transmission source information received by the receiving unit.SELECTED DRAWING: Figure 1 【課題】マルウェア攻撃によるサーバの可用性の低下を抑制する通信先限定システム、通信先限定装置、管理装置、通信先限定方法及びコンピュータプログラムを提供すること。【解決手段】データと、データの送信元を示す送信元情報と、データの送信先を示す送信先情報とを受信する受信部と、受信したデータを送信先へ送信する送信部と、受信部にデータを送信する可能性のある送信元を示すホワイトリスト送信元情報と、受信部が受信したデータを送信する可能性のある送信先を示すホワイトリスト送信先情報とを含むホワイトリスト情報と、受信部が受信した送信元情報とに基づいて、受信部が受信したデータを、受信部が受信した送信先情報が示す送信先に、送信部によって送信するか否かを判定する判定部と、ホワイトリスト情報を、受信部が受信した送信元情報に基づいて更新するホワイトリスト情報更新部と、を備える、通信先限定システムである。【選択図】図１