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GMO's security lapse exposed systems for over two years, CEO faces pay cut

Japanese online financial services provider GMO Internet Group disclosed that a cyberattack exploited vulnerabilities in its systems that persisted for more than two years. The company's chief executive and three other senior executives will take salary reductions as a result of the security breach.

LSN Singapore · 2 November 2026

GMO's security lapse exposed systems for over two years, CEO faces pay cut

GMO Internet Group, a major Japanese provider of online financial services, has acknowledged that systems compromised in a recent cyberattack remained vulnerable to exploitation for an extended period. The company's leadership disclosed that the security gap persisted for over two years before being discovered, raising questions about the organization's cybersecurity protocols and monitoring capabilities.

The breach has prompted significant accountability measures within the company's executive ranks. GMO's chief executive officer and three additional senior executives will face pay cuts as disciplinary action. The exact duration and financial impact of the salary reductions were not immediately detailed, but the move signals the company's commitment to addressing governance failures that contributed to the prolonged vulnerability.

The incident underscores growing cybersecurity challenges facing financial services firms across the Asia-Pacific region. Companies handling sensitive financial data face increasing pressure from regulators and customers to maintain robust security infrastructure and implement timely threat detection systems. GMO's delayed discovery of the vulnerability suggests potential gaps in its incident detection and response procedures, issues the company will likely need to address to restore stakeholder confidence.

The company has not yet disclosed detailed information regarding the nature of the cyberattack, the volume of data potentially affected, or steps being taken to prevent similar incidents. Regulatory authorities in Japan are likely to scrutinize the company's security practices and remediation efforts.