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Japanese Online Service Company GMO Apologizes for Security Breaches and Promises Compensation

GMO said it will compensate victims and offer a 5,000 yen goodwill payment to all users after more than 26,000 cases of unauthorized access.

  • On Monday, GMO Internet Group CEO Masatoshi Kumagai held a news conference in Tokyo to address unauthorized access incidents affecting the Onamae.com Desktop Cloud service, which provides servers for automated foreign exchange margin trading.
  • GMO acknowledged that attackers deployed ransomware by exploiting systemic weaknesses the company failed to address despite internal warnings issued in April 2024.
  • The company confirmed more than 26,000 cases of unauthorized access, with one victim losing 4.3 million yen after roughly 50 trades were executed in roughly 3 minutes.
  • Group CEO Kumagai Masatoshi apologized for the security breaches, announcing a 30% pay cut for three months and promising to pay 5,000 yen to all affected customers.
  • Prime Minister Sanae Takaichi promised to beef up Japan's cybersecurity measures, while GMO is offering $1 million for information leading to the arrest of the attackers, having already received more than 400 submissions.
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35 Articles

Lean Right

Data leaks have hit a number of Japanese companies, from Nojima, Arara Message to Suntory, with millions of users' information affected.

Santa Maria TimesSanta Maria Times
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Independent EspañolIndependent Español
Center

TOKIO (AP) — Japan’s online service company GMO Internet Group apologized on Monday for recent security breaches stemming from cyber attacks, while promising to prevent repeat and compensate victims.

·Calhoun, United States
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The Toronto StarThe Toronto Star
+14 Reposted by 14 other sources
Lean Left

Japanese online service company GMO apologizes for security breaches and promises compensation

TOKYO (AP) — Japanese online service company GMO Internet Group apologized Monday for recent security breaches from cyberattacks, while promising to prevent a recurrence and compensate victims.

·Toronto, Canada
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Kyodo News+ broke the news in Tokyo, Japan on Sunday, November 1, 2026.
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