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Hacking & intrusion

GMO forex service hack leads to unauthorized trades and customer losses

First reported · Last reported · 36 related reports

Unauthorized access to GMO's foreign exchange trading service resulted in a data leak and unauthorized trades. As of November 13, users had reported losses totaling ¥2.99 billion across 2,943 accounts, while costs including compensation for customer losses and goodwill payments totaled ¥3.05 billion. GMO conducted a group-wide review. It also emerged that vulnerabilities had been flagged and a system redesign proposed two years earlier, but no action had been taken.

Key facts

Affected organization
GMO Internet Group
Incident type
Hacking & intrusion
Occurred / detected
Not confirmed
Scale of damage
Reported losses across 2,943 accounts totaling ¥2.99 billion; related costs, including compensation, of ¥3.05 billion
Cause / method
Unauthorized access to the foreign exchange trading service
Location
Japan

Timeline

  1. A hack of a Japanese trading platform and a demand for $50 million were reported.
  2. GMO users' reported losses totaled ¥2.99 billion across 2,943 accounts.
  3. GMO recognized total costs of ¥3.05 billion for compensation for customer losses, goodwill payments and other expenses, and conducted a group-wide review.
  4. It emerged that vulnerabilities had been flagged and a system redesign proposed two years earlier, but no action had been taken.

36 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.