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Market Incident

Public · Developing

AI compiled from Infoway · 4 analyzed stories

GMO Says Hackers Threaten to Leak Data on Tuesday

GMO Internet Group said hackers threatened to publicly leak customer data and launch a ransomware attack at noon on Tuesday. The group said in a Monday statement that it would not comply with the hackers' demands because paying could not guarantee the stolen data would be deleted.

Published:

Updated:

What happened

GMO Internet Group said its security team flagged a weakness in its trading server service in April 2024, but the warning did not reach management. Hackers later broke in, and brokers said stolen login details were used to trade on customer accounts. The service remains offline, and the hackers published data they claim is customer information.

Global impact / market context

Customers may face misuse of account access or exposure of personal information. GMO refused to pay because payment could not ensure the stolen data would be deleted. FXTF blocked logins from outside Japan for all its clients, including those who did not use GMO’s service.

What to watch

  1. Check whether GMO’s service comes back online; this shows whether the disruption continues.
  2. Check for confirmation about the published data; the hackers’ claim alone does not establish what it contains.
  3. Check whether FXTF keeps its overseas login block; it affects all its clients, not just GMO users.

Affected assets

  • 9449
  • Dukascopy Japan
  • FXTF
  • OANDA Japan

Evidence