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Ransomware

GMO Internet cloud breach leaks customer data and causes trading losses

First reported · Last reported · 70 related reports

GMO Internet's Onamae.com Desktop Cloud suffered a malware attack that affected up to 26,739 servers, resulting in customer data leaks and asset losses from unauthorized trades. The company advised customers to shut down their PCs and offered a bounty to track down the attackers, while acknowledging that it had not adequately responded to earlier warnings about security vulnerabilities. By November 12, claims for loss compensation totaling 2.99 billion yen had been submitted for 2,943 accounts, while the final loss amount remained undetermined.

Key facts

Affected organization
GMO Internet
Incident type
Ransomware
Occurred / detected
Not confirmed
Scale of damage
Up to 26,739 servers affected; loss compensation claims totaling 2.99 billion yen for 2,943 accounts
Cause / method
Malware and ransomware attacks on cloud servers and an inadequate response to security vulnerabilities
Location
Japan

Timeline

  1. It emerged that a breach of Onamae.com Desktop Cloud had affected up to 26,739 servers.
  2. The attackers threatened to release customer information.
  3. The company advised customers to shut down their PCs and offered a $1 million bounty to track down the attackers.
  4. The company's representative acknowledged an inadequate response to earlier warnings about security vulnerabilities and apologized.
  5. Loss compensation claims reached a total of 2.99 billion yen across 2,943 accounts.
  6. The company projected an impact of approximately 3.05 billion yen on its financial results due to unauthorized access.

Also affected by this incident

70 related reports

The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organization’s official statements for accurate details.