GMO Internet confirms data leak after cyberattack
In brief
- GMO Internet reports a data leak after an intrusion into its Onamae Desktop Cloud service.
- Up to 27,000 servers may be affected, with customers advised to reset passwords.
- No direct link ties the Artex tool to the breach, but similar attacks exploit known vulnerabilities.
Japanese internet giant GMO Internet is investigating a data leak following an unauthorized intrusion into its Onamae Desktop Cloud service, which serves financial traders. The company believes hackers may have published customer and business-related data online, though authenticity is still being verified.
GMO identified up to 27,000 potentially affected servers and advised customers to reset passwords after reports of unauthorized operations on trading accounts. The breach coincides with a separate incident where GMO’s cybersecurity unit detected the use of Artex, a Chinese AI-powered penetration testing tool, in attacks targeting Japanese companies.
Japanese regulators, including the Financial Services Agency (FSA), have since May urged financial firms to bolster cybersecurity, emphasizing vulnerability management, multi-factor authentication, and incident preparedness. While no direct link has been established between Artex and the Onamae breach, recent attacks in South Korea and Japan exploited similar weaknesses.
What it changes for you
- CybersecurityCompanies must strengthen access controls and vulnerability management to mitigate risks from malicious AI-powered tools.
- Finance & BankingFinancial institutions are urged to implement multi-factor authentication and monitor suspicious activities on customer accounts.
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