GMO cyberattack exposes customer data after ransom refusal

GMO Internet Group faced a cyberattack on its FX services, with attackers publishing customer data online after the company refused to pay a ransom. The company urged users to disconnect power and shut down devices. The attackers released what they claim is partial customer personal information on October 27, following GMO's refusal to meet ransom demands. GMO declined to comment on specific incidents, and the authenticity of the statement remains uncertain. The company had warned of a ransomware attack threat on October 26. Japan's Ministry of Economy, Trade and Industry will establish free cybersecurity consultation desks nationwide, while Financial Services Minister Katsunobu Katayama requested financial institutions take preventive measures. GMO's president revealed attackers demanded $50 million in cryptocurrency, and the company is analyzing affected customer devices.