GMO Internet hit by cyberattack in Japan: hackers publish data and demand ransom

TechnologyInternationalInfobaeOct 28, 2026, 2:14 PM40 s readAI summary

GMO Internet Group is investigating unauthorized access to Onamae Desktop Cloud, its virtual desktop service for financial operators, detected on October 21. The breach could affect 26,739 servers linked to client accounts of more than 70 securities firms and forex providers. The attackers began publishing data on October 27 and are demanding a ransom; the company refused to pay and announced compensation for verified losses. Its shares fell 15.65% on the Tokyo Stock Exchange on October 26.

In 40 seconds

GMO detected the unauthorized access on October 21 and reported the case to Japanese police the following day.
The breach could compromise 26,739 servers tied to client accounts of more than 70 securities firms and forex providers.
The attackers published data on October 27 and threatened further leaks unless a ransom was paid; GMO refused to pay.

Read the full story at Infobae

IASummary generated by artificial intelligence from a story by Infobae. It may contain errors: the original source prevails.

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GMO Internet hit by cyberattack in Japan: hackers publish data and demand ransom

In 40 seconds

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