In July, the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) stated that a dedicated network line called "VPN," which was used to maintain the port system, may have been used as an entry point for the attack, and compiled security measures such as ensuring that software is updated.
In July, a cyberattack by the ransom-demanding computer virus "ransomware" caused a system failure at the container terminal at Nagoya Port, making it impossible to load and unload containers for about three days.
The Ministry of Land, Infrastructure, Transport and Tourism has set up a committee of experts and others to conduct verification, and has recently compiled security measures for port officials.
As a result, since there is a possibility that a virtual dedicated network line called "VPN" used for system maintenance at Nagoya Port may have been used as an entry point for attacks, it is necessary to regularly check the information on software such as network equipment and ensure that it is updated.
In addition, the Port of Nagoya backs up only three days' worth of data, which is one of the reasons why it took so long to recover, cites the fact that multiple backups, including those for a long period of time, are kept.
It is also important to establish procedures in advance in anticipation of cyberattacks.
In the future, the Ministry of Land, Infrastructure, Transport and Tourism would like to call for security measures at ports by holding briefings nationwide.