Japan’s Financial Services Agency explains unauthorized FX transactions linked to GMO Internet; 5 firms report customer losses
記者会見,片山財務大臣兼内閣府特命担当大臣閣議後記者会見の概要（令和８年10月27日）について掲載しました。
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Japan’s Financial Services Agency said that after user information in GMO Internet’s leased servers was accessed without authorization, 5 FX firms had reported customers experiencing unidentified transactions. The firms have suspended some customers’ FX trading, blocked orders suspected of coming from overseas attackers, and reset passwords, while GMO Internet has announced that it will compensate for the related losses. The Financial Services Agency also asked all FX firms to remind customers to change their passwords, check for unidentified transactions, and strengthen customer transaction monitoring; it has not received any new reports of unauthorized transactions.
The material outlines how information leaked from leased servers led to unidentified FX transactions and lists the measures taken by the firms, including suspending trading, blocking orders, and resetting passwords.
Source:金融庁 · fsa.go.jp