Last year, the National Police Agency and others sent a large number of data to overseas sources. It is unusual for the results of such an attack to be released during an election year.
The government is considering introducing a system that blocks access to servers from overseas to reduce the burden on the government and its agencies. The agency is concerned that a group calling itself "Kremlin" may have been behind the attack. The group is believed to be using a number of computers to send data to the outside world.