According to a survey by the National Police Agency, 230 cases of serious damage caused by malicious programs called "ransomware" used for cybercrime were confirmed in Japan last year, the highest number ever. Cyberattacks that appear to be coming from overseas are one after another, and the National Police Agency is calling on companies to strengthen security measures.
According to the National Police Agency, 1 cases of serious damage caused by ransomware, a malicious program used for cybercrime, were confirmed in Japan last year, an increase of 230 cases from adults, the highest number ever.
As a result of analyzing 84 cases in which the modus operandi was confirmed, 182 cases, or 65%, were malicious cases that could be called "double extortion," such as encrypting data with a computer virus and demanding a ransom in exchange for getting it back.
Of the total, more than half of the attacks, 119 were small and medium-sized enterprises, 121 were major companies, 63 were organizations, and by industry
, 46 were in the
manufacturing industry,
There were 75 in the service industry and 49 in health care and
welfare.
In addition, 20 of the 54 ransom demands were required to be paid in cryptocurrencies such as Bitcoin, and in some cases, leaked personal information and passwords were posted on dark websites called the "dark web".
In addition to ransomware, cyberattacks that appear to be from overseas have been one after another, and the websites of government agencies and domestic companies have become unavailable, Russian hackers have issued statements implying responsibility, and "Lazarus", which is said to be a subordinate organization of the North Korean authorities, is targeting Japan companies related to crypto assets. The National Police Agency is calling on companies to strengthen security measures.