Last year, the National Police Agency and other organizations released an analysis of a cyberattack that temporarily made government websites, etc., a "DDoS attack" that sent a large amount of data to overseas sources. It is unusual to make a public announcement during the investigation, and we would like to call on private businesses to take measures to prevent damage.

Last year, the National Police Agency (NPA) was investigating a cyberattack that temporarily made the websites of government agencies and private businesses, such as the administrative information portal site "e-Gov," temporarily unavailable, and announced the results of the analysis together with the Cabinet Cybersecurity Center.

According to it, the series of attacks is a "DDos attack" that sends up to 1 gigabytes of data per second to stop functioning, and the source IP addresses are tens of thousands, most of them from overseas.

Police authorities believe that a hacker group may have exploited vulnerabilities such as PCs to illegally manipulate a large number of telecommunications devices and launch an attack, and are investigating the connection because a hacker group calling itself "Kilnet" that supports Russia has stated that it carried out a cyberattack.

It is unusual for the results of such an analysis to be released during an investigation, and the National Police Agency and others hope to prevent damage by calling on private businesses as well as government agencies to strengthen security and take measures.

Specifically, we would like you to consider introducing a system that analyzes suspicious access from overseas and blocks communications, and a mechanism called "CDN = Content Delivery Network" that distributes servers to reduce the burden.