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GMO Internet Reports Cyber Breach, Urges Government Action

GMO Internet Reports Cyber Breach, Urges Government Action

First seen 24 Oct 2026, 16:14 UTC • •

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ThreatCluster AI
ThreatCluster •October 24, 2026 at 17:14 UTC
  • •Unauthorized access to 26,739 servers at GMO Internet confirmed.
  • •Customer login information, including passwords, may have been compromised.
  • •GMO Internet is offering compensation to affected users and has requested government intervention.

GMO Internet Inc. has reported unauthorized access to its servers, affecting approximately 26,739 servers used for automated FX currency margin trading. Customer login information, including passwords, may have been compromised, leading to fraudulent transactions. The company has shut down all affected servers and is compensating users for losses incurred. Additionally, GMO Internet has requested the Japanese government to implement active cyber defense measures in response to the incident. A ransom demand has reportedly been made by the attackers, who threaten to release stolen information if their demands are not met. The situation is ongoing, with users advised to monitor their accounts closely.

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Timeline

2026-10-24
GMO Internet discloses cyber breach
GMO Internet confirmed unauthorized access to its FX trading servers, affecting user login information.
Nippon
2026-10-24
GMO requests government action
The company urged the Japanese government to implement active cyber defense measures in light of the breach.
Mainichi.Jp

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Common questions

What user information was compromised?
Customer login information, including passwords, may have been compromised in the breach.
What actions is GMO taking for affected users?
GMO Internet is compensating users for losses and providing a consolation payment of 5,000 yen.
What should users do to protect themselves?
Users should monitor their accounts for unauthorized transactions and change their passwords immediately.