Japan · Story · Companies
GMO Internet Group faces cybersecurity breach
GMO Internet Group's servers were breached, exposing user data and prompting a call for government action on cyber defense.
No new coverage since 24 October 2026.
The story so far as of 24 October 2026
On October 23, 2026, GMO Internet Group's servers for foreign exchange trading were breached, potentially exposing user IDs and passwords. The company began investigating the breach and advised users to monitor their accounts. The following day, on October 24, GMO requested the Japanese government to implement 'active cyber defense' measures due to unauthorized access to its automated trading server, which led to unrecognized transactions. The company intensified communication with users to mitigate further damage.
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Coverage, day by day
- Companies
GMO Internet Group requests active cyber defense
Impact Investors using GMO's services face increased cybersecurity risks and operational disruptions.
Sources: NHK ↗
- Disruption
GMO Internet Group hit by server breach
Impact Investors using GMO's FX trading services face security risks and potential unauthorized transactions.
Sources: NHK ↗
Sources in this story
- NHK 2
Sources: each headline links to the original article on the publisher's site.