Japanese Companies Compensate Users as Cyberattacks Expose Critical System Vulnerabilities

GMO Internet Group Announces Compensation Following Foreign-Exchange Trading Breach

GMO Internet Group revealed it will compensate customers for losses stemming from unauthorized access to its foreign-exchange trading service1

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. CEO Masatoshi Kumagai announced a 5,000 yen ($32) goodwill payment for all customers in a blog post2

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. The company, valued at $2.6 billion as of Friday's close, saw its shares plummet nearly 14% to a four-month low against a 0.3% rise in Tokyo's benchmark index1

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. GMO will provide a free alternative service to customers for six months but cannot yet calculate the total financial impact from goodwill payments and compensation for losses1

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. The sprawling internet group, which encompasses internet infrastructure, financial services and cryptocurrency trading, received a ransom demand from a party believed to be behind the attack1

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. The attackers threatened to disclose company and customer information if GMO did not comply2

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. GMO refused the demand and is coordinating its response with police and other authorities1

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Park24 Pays Customers After Personal-Data Breach

Park24, which operates the Times car-sharing service, announced 3,000-yen payments to customers following a personal-data breach1

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. The company expects to book an extraordinary loss of 5.5 billion yen due to responses to the attack and compensation payments1

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. In response to the breach, Park24 said it would no longer retain identity document images after completing registration verification2

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. The incident demonstrates the direct commercial costs Japanese companies now face from cyberattacks, including system restoration, customer data protection, user compensation, and trust rebuilding2

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PHP Programming Language Vulnerabilities Trigger Millions of Hacking Attempts

Government and company websites in Japan, Europe and elsewhere went offline last week after disclosure of critical vulnerabilities in the PHP programming language prompted millions of hacking attempts1

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. The PHP programming language underpins much of the internet, making the vulnerability particularly concerning for critical systems1

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. Japanese companies are being roiled by attacks with experts saying AI is helping automate tasks from scanning for software vulnerabilities to crafting phishing campaigns, making cybercrime faster, cheaper and harder to detect1

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. Security experts warn that AI is reducing the cost of launching attacks, making it easier for cybercriminals to probe software weaknesses, automate intrusions, and pressure companies with ransom demands2

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. The scale of recent cyberattacks has exposed weaknesses in Japanese companies' ability to protect their wealth of customer data1

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Japan Establishes AI-Driven Defense Systems to Simulate Attacks

Japan announced it would set up a team to simulate cyberattacks using AI in cybersecurity to identify weaknesses in technology systems as organizations scrambled to curtail risks1

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. Investors and policymakers see the initiative as part of a broader effort to protect companies and public services2

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. GMO requested the Japanese government apply cyberdefense measures in response to the cyberattack, after the introduction of a cyberdefense system this month1

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. The system could involve steps such as attacking hostile servers to neutralize threats1

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. Kumagai emphasized that "now is the time for the public and private sectors to work together to protect Japan"1

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Growing Economic Impact of Cyberattacks Reaches Record Levels

There have been 723 cybersecurity incidents in the year to October 20, according to data from TrendAI, exceeding the annual totals in 2023 and 20241

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. Satoshi Nagano, president of cybersecurity firm ESET Japan, noted that "reports may reflect both the threats organizations face and greater visibility into incidents that would previously have gone undetected, been underinvestigated, or remained undisclosed"1

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. The financial and reputational costs are mounting as companies compensate users while dealing with service disruption and market pressure2

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. According to a report from Moody's Ratings, well-resourced companies will be able to offset rising cybersecurity risk by investing in stronger defenses1

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. However, "those with weak patching practices are likely to fall further behind, especially if they have large digital networks that greatly broaden their attack surface"1

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. The attacks have unsettled investors and forced companies to weigh the cost of compensation, service disruption, and reputational damage as automating attacks becomes easier and more accessible to threat actors2

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