One of the most relevant cases is that of GMO Internet Group, a Japanese conglomerate with business activities related to internet infrastructure and financial services. The company announced that it would compensate customers for losses resulting from unauthorized access following a cyberattack against its foreign exchange trading service. Its president and chief executive officer, Masatoshi Kumagai, announced that all customers would receive 5,000 yen, approximately 32 dollars, as a gesture of goodwill. This amount was offered regardless of the individual losses that could be substantiated.<\/p>\n\n\n\n
The decision demonstrates how a computer security breach can directly affect the relationship between a company and its consumers. When a financial platform experiences unauthorized access, users may encounter transactions they do not recognize, service interruptions, or uncertainty regarding the security of their funds. Although compensation may help cover part of the damage, it does not necessarily resolve all the financial and personal consequences of the incident. There is also a reputational dimension, because customers need to trust that the organization has sufficient mechanisms in place to protect their transactions.<\/p>\n\n\n\n The situation became more serious when GMO reported that it had received a financial demand attributed to individuals supposedly connected to the attack. According to Kumagai, those responsible were demanding 50 million dollars in cryptocurrency and threatening to disclose corporate information and customer data if they did not receive the money. The company stated that it would not accept the demand and would respond in coordination with the police and other authorities. This episode reflects a form of digital extortion in which criminals use the threat of publishing information to exert financial pressure on affected organizations.<\/p>\n\n\n\n GMO also announced that it would offer an alternative service free of charge for six months to customers who needed to continue carrying out their transactions. The measure was intended to reduce the difficulties caused by the service interruption while investigations were underway. However, the company acknowledged that it was still unable to calculate the total financial impact. A cyberattack can generate expenses that are difficult to anticipate, such as technical investigations, legal assistance, audits, compensation payments, and losses related to business interruptions.<\/p>\n\n\n\n The repercussions also reached the stock market. GMO shares fell nearly 16% during the trading session on October 26, 2026, reaching their lowest level in approximately four months, according to Reuters. Although it would not be correct to automatically attribute the entire stock market movement to a single event, the decline coincided with the concern generated by the incident and its potential consequences. Investors assess a company's ability to manage risks and protect its services, meaning that a cyberattack can influence their financial perception of the business.<\/p>\n\n\n\n Another prominent case involves Park24, a Japanese company that operates the Times car-sharing service. The company announced that it would make payments of 3,000 yen to customers affected by a personal information leak that occurred during September 2026. The incident demonstrates that cyber threats do not exclusively affect banking institutions or technology companies. They can also harm transportation and mobility organizations that need to collect and manage their users' information.<\/p>\n\n\n\n The company reported that approximately 6.6 million current and former customer accounts could have been affected. The identified compromised data included names, addresses, dates of birth, and telephone numbers. This information can be valuable to criminals seeking to commit fraud or attempt identity theft. Therefore, a data breach represents a risk that can continue even after the company has restored the normal operation of its systems.<\/p>\n\n\n\n As part of its response, Park24 announced that it would stop retaining images of identity documents once the registration verification process had been completed. This decision is relevant because identification documents contain information that could be misused. Keeping personal files that are no longer necessary increases the amount of information potentially exposed in the event of an intrusion. Limiting data collection and retention is a reasonable measure for reducing certain risks.<\/p>\n\n\n\n Park24 expected to record an extraordinary loss of 5.5 billion yen, approximately 35 million dollars, related to response expenses and the planned compensation payments. This figure reflects the fact that the financial consequences of a cyberattack can greatly exceed the individual payments made to consumers. Investigations, corrective measures, and changes to internal procedures also require financial resources. Although this amount corresponds to a specific case, it helps illustrate the economic scale that these incidents can reach.<\/p>\n\n\n\n The scale of the problem can also be observed in the statistics on computer security incidents recorded in Japan. According to TrendAI data cited by Reuters, the country had recorded 723 cybersecurity incidents as of October 20, 2026. This figure exceeded the annual totals recorded during 2024 and 2025, highlighting the importance of strengthening protection strategies. However, these data must be interpreted correctly, and it should not be assumed that all types of attacks have necessarily increased in the same proportion.<\/p>\n\n\n\n Satoshi Nagano, president of ESET Japan, pointed out that the increase in reported incidents could also be related to greater visibility of incidents that had previously gone undetected or had not been publicly reported. This observation introduces an important nuance into the analysis of the statistics. A higher number of recorded incidents may reflect both an evolution in threats and an improvement in detection and reporting mechanisms. In any case, the figures demonstrate the need to identify a cyberattack, assess its consequences, and communicate risks in a timely manner.<\/p>\n\n\n\n Companies maintain interconnected infrastructures involving suppliers, customers, external platforms, and specialized services. This interconnection facilitates information exchange and enables efficient processes to be developed, but it also creates dependencies that can become vulnerable points. An incident involving a technology provider can affect organizations that did not participate directly in the initial attack. Therefore, companies need to know which providers have access to their systems and what measures they use to protect information.<\/p>\n\n\n\n Artificial intelligence is changing the cybersecurity landscape because it makes it possible to automate tasks related to identifying vulnerabilities and preparing fraudulent campaigns. Tools based on this technology can analyze large amounts of information, recognize patterns, and generate content adapted to different contexts. These capabilities have legitimate applications in system protection, but they can also be exploited by malicious actors. For this reason, a cyberattack can take place in an environment where certain activities become faster and less expensive.<\/p>\n\n\n\n One of the best-known risks is phishing, a type of fraud in which criminals attempt to deceive people into obtaining passwords, banking information, or other sensitive data. Artificial intelligence can facilitate the creation of convincing messages, adapt them to different languages, and reproduce writing styles similar to those used by legitimate organizations. This can make some fraud attempts more difficult to identify, especially when messages appear to be related to actual transactions carried out by the recipient. However, using artificial intelligence does not guarantee the success of a campaign.<\/p>\n\n\n\n Another relevant aspect of the events in October 2026 was the concern generated by vulnerabilities in the PHP programming language. This technology has been used for decades to develop websites, applications, and various internet services. Its presence in numerous technological environments means that security problems can have widespread repercussions when they affect components used by different organizations. According to Reuters, the disclosure of critical vulnerabilities was accompanied by exploitation attempts and disruptions affecting government and corporate websites in different regions.<\/p>\n\n\n\n A website may use a programming language, a database, a server, and external services that work together. If one of these elements has a weakness, the security of the entire system may be compromised, depending on its configuration. Nevertheless, Reuters did not establish a direct connection between the PHP vulnerabilities and the incident suffered by GMO Internet Group. Therefore, both events must be analyzed separately.<\/p>\n\n\n\n Security updates are a fundamental measure for reducing the risks associated with these vulnerabilities. When developers identify a problem and release a fix, organizations must assess its impact and apply the corresponding changes. However, some companies maintain outdated systems or customized software that require additional testing before being updated. For this reason, maintaining a technology inventory and periodically reviewing the components being used is essential.<\/p>\n\n\n\n The Japanese government has also begun paying greater attention to protecting its digital infrastructure. According to Reuters, Prime Minister Sanae Takaichi announced that the government planned to prepare an urgent package of measures against cyberattacks. In addition, the authorities announced the creation of a team intended to simulate cyberattacks using artificial intelligence in order to identify weaknesses in technological systems. The initiative seeks to improve the ability to anticipate threats that can affect both public institutions and private companies.<\/p>\n\n\n\n Security simulations make it possible to examine how systems respond to specific scenarios and verify whether detection mechanisms work correctly. When conducted with authorization and within clearly defined limits, these tests help identify configuration errors and coordination problems. Artificial intelligence can expand analytical capabilities and facilitate the assessment of large amounts of technical information. However, its effectiveness depends on the quality of the tests and the ability of organizations to correct the problems identified.<\/p>\n\n\n\n Active defense against threats also raises questions related to the attribution of responsibility. Identifying a server from which a malicious communication originated does not necessarily prove that its owner is responsible for the cyberattack. Criminals may conceal their identities or exploit compromised devices belonging to people who have no involvement in the illegal activity. For this reason, any government strategy requires legal safeguards, oversight, and international cooperation.<\/p>\n\n\n\n One of the main obstacles to improving cybersecurity is the cost of maintaining secure systems on an ongoing basis. Organizations need to invest in technological infrastructure, specialized tools, audits, qualified personnel, and incident response mechanisms. They must also allocate resources to training their employees because some security problems may originate from human error. These investments can be particularly difficult for small and medium-sized businesses that do not have the budgets of large technology conglomerates.<\/p>\n\n\n\n Shoichi Arisawa, an analyst at IwaiCosmo Securities, pointed out that Japanese companies already have conventional security measures in place and that strengthening them even further could represent a considerable financial burden. His observation reflects an important challenge: companies must balance their investments in protection with the resources needed to maintain their business activities. However, the cases of GMO and Park24 demonstrate that a cyberattack can generate costs greater than those of an ordinary technical intervention. Compensation payments, investigations, and service interruptions can become significant financial commitments.<\/p>\n\n\n\n Risk assessment must take into account that not all organizations need exactly the same protection measures. A financial institution has different requirements from those of a small e-commerce business or a transportation company. However, all companies that store personal information or depend on digital services must establish appropriate controls. Protection must be tailored to the sensitivity of the data, the volume of transactions, and the potential consequences of an interruption.<\/p>\n\n\n\n Measures that can reduce risks include multi-factor authentication, encryption of sensitive information, independent backups, and periodic reviews of access permissions. It is also important to limit the amount of personal data retained when there is no longer an operational or legal need to store it. Park24's decision to stop retaining images of identity documents after completing verification is a concrete example of this strategy. The less unnecessary information an organization retains, the smaller the volume of data that could be exposed.<\/p>\n\n\n\n Operational recovery must also be part of the security strategy. A company may have advanced preventive measures in place and still suffer an intrusion due to unknown vulnerabilities or failures involving external providers. For this reason, business continuity plans must consider scenarios in which systems stop working or information becomes temporarily inaccessible. Recovery tests and protected backups can reduce the time required to restore services.<\/p>\n\n\n\n Trust is one of the most important assets of any organization that offers digital services. Consumers provide personal information and, in certain cases, financial data with the expectation that companies will adopt reasonable measures to protect it. When a breach occurs, this relationship can deteriorate even if the company offers financial compensation. A user may receive compensation and still decide to leave the platform because they believe that sufficient guarantees are no longer in place.<\/p>\n\n\n\n The compensation announced by GMO and Park24 represents a response to the immediate consequences of their respective incidents. However, individual payments do not replace the need to explain what happened, what information may have been compromised, and what measures will be adopted to prevent further problems. Transparency is particularly important because consumers need to understand the risks that could affect them. Delayed or incomplete communication can worsen the loss of trust and raise doubts about the company's ability to manage a crisis.<\/p>\n\n\n\n It is also necessary to distinguish between voluntary compensation and a legal obligation to provide compensation. The announcement of a payment does not automatically mean that identical legal liability exists in every cyberattack case. Obligations may depend on the circumstances of the incident, applicable laws, contracts, and the demonstration of specific damages. Therefore, the amounts announced in Japan should be understood as specific corporate decisions rather than as a general rate.<\/p>\n\n\n\n The situation recorded in Japan during October 2026 demonstrates that cyberattacks have become a threat directly related to economic stability, business continuity, and consumer trust. The cases of GMO Internet Group and Park24 reflect the different consequences that digital breaches can generate, ranging from unauthorized access to financial services to the exposure of personal information and the need to assume substantial financial costs. The compensation announced by both companies represents a concrete response to their respective incidents, but it does not eliminate the structural problems that can facilitate these threats. Furthermore, the 723 incidents recorded in Japan as of October 20, according to TrendAI data cited by Reuters, highlight the importance of strengthening protection strategies.<\/p>\n\n\n\n Artificial intelligence adds another dimension to this scenario because it can facilitate both defensive activities and certain criminal operations. Added to this are vulnerabilities in widely used software, interdependence among technology providers, and the difficulties involved in investigating incidents that may involve infrastructure in different countries. In response to these circumstances, organizations need to combine investments in prevention, system monitoring, professional training, and recovery mechanisms. They must also develop transparent procedures to inform consumers and address damages when a breach occurs. Preventing a cyberattack must be considered a strategic investment rather than simply a technical expense that can be postponed.<\/p>\n\n\n\n Ultimately, cyber incidents can no longer be considered isolated problems that exclusively affect technology departments. Their consequences can extend to financial markets, business relationships, corporate reputation, and the continuity of essential services. For organizations in any sector, the question is no longer just how to respond after a cyberattack, but what measures they can implement to reduce the likelihood of experiencing one and limit its consequences. Japan's experience demonstrates that digital security requires continuous planning, proportionate investment, and a corporate culture that considers information protection a shared responsibility.<\/p>\n\n\n\n At ITD Consulting, we help companies address technological challenges through IT services aimed at improving the security, efficiency, and continuity of their operations. If your organization wants to strengthen its systems, assess its technological needs, or prepare for a potential cyberattack, we invite you to contact our team. Write to us at<\/strong> info@itdconsulting.com<\/strong><\/a> to learn how ITD Consulting can support you in developing a more secure technological infrastructure that is better prepared for today's challenges.<\/strong><\/p>","protected":false},"excerpt":{"rendered":" Ciberataque en Jap\u00f3n: Empresas comienzan a indemnizar a sus clientes ante el aumento de las amenazas digitales. ITD Consulting<\/p>","protected":false},"author":5,"featured_media":38222,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[459,69,71,580,201,68],"class_list":["post-38218","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias","tag-459","tag-ciberataque","tag-ciberseguridad","tag-indemnizacion","tag-japon","tag-seguridad"],"_links":{"self":[{"href":"https:\/\/itdconsulting.com\/en\/wp-json\/wp\/v2\/posts\/38218","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itdconsulting.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itdconsulting.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itdconsulting.com\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/itdconsulting.com\/en\/wp-json\/wp\/v2\/comments?post=38218"}],"version-history":[{"count":1,"href":"https:\/\/itdconsulting.com\/en\/wp-json\/wp\/v2\/posts\/38218\/revisions"}],"predecessor-version":[{"id":38223,"href":"https:\/\/itdconsulting.com\/en\/wp-json\/wp\/v2\/posts\/38218\/revisions\/38223"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/itdconsulting.com\/en\/wp-json\/wp\/v2\/media\/38222"}],"wp:attachment":[{"href":"https:\/\/itdconsulting.com\/en\/wp-json\/wp\/v2\/media?parent=38218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itdconsulting.com\/en\/wp-json\/wp\/v2\/categories?post=38218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itdconsulting.com\/en\/wp-json\/wp\/v2\/tags?post=38218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"ITD](\"https:\/\/itdconsulting.com\/wp-content\/uploads\/2026\/11\/itd-consulting-backup-acronis-vds-vps-ciberseguridad-microsoft-365-IA-japon-ciberataque-1-1024x683.webp\")
<\/figure>\n\n\n\nPark24: Exposure of Personal Information<\/strong><\/h2>\n\n\n\n
Increase in Cyberattacks in Japan<\/strong><\/h2>\n\n\n\n
Artificial Intelligence and New Cyber Threats<\/strong><\/h2>\n\n\n\n
![\"ITD](\"https:\/\/itdconsulting.com\/wp-content\/uploads\/2026\/11\/itd-consulting-backup-acronis-vds-vps-ciberseguridad-microsoft-365-IA-japon-ciberataque-2-1024x683.webp\")
<\/figure>\n\n\n\nPHP Vulnerabilities and Exposure of Digital Services<\/strong><\/h2>\n\n\n\n
The Japanese Government's Response<\/strong><\/h2>\n\n\n\n
The Business Cost of Preventing a Cyberattack<\/strong><\/h2>\n\n\n\n
Customer Trust and Corporate Responsibility<\/strong><\/h2>\n\n\n\n
![\"ITD](\"https:\/\/itdconsulting.com\/wp-content\/uploads\/2026\/11\/itd-consulting-backup-acronis-vds-vps-ciberseguridad-microsoft-365-IA-japon-ciberataque-3-1024x683.webp\")
<\/figure>\n\n\n\n