Japan · Country watch

GMO Data Breach, Japan FX Intervention, Resona's Semiconductor Focus

GMO faces a data breach affecting millions, Japan signals possible FX intervention, and Resona shifts focus to semiconductor materials.

Florent Kalfon · 2 November 2026 · 3 articles read

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Conditions in Japan are deteriorating due to a significant data breach affecting millions and potential FX market intervention. Businesses face increased cybersecurity risks and currency volatility.

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In this briefing Prestige International · Hideki Someya · Resona Holdings · Ministry of Finance (Japan) · Katayama

Safety & health

Technology
Finance

Prestige International data breach affects 5.5 million

black and white calendar on wall — Paul Hanaoka / Unsplash

Prestige International announced that its group company's system suffered unauthorized access, leading to the potential leakage of up to 5.5 million personal data records, NHK reports. The breach affects users of the company's road service operations. The company is investigating the breach and implementing measures to prevent further incidents. This incident highlights ongoing cybersecurity challenges for businesses handling large volumes of personal data.

Impact Companies relying on Prestige International's services face increased cybersecurity risks and potential reputational damage.

Sources: NHK ↗

Companies

Technology
Manufacturing

Resona shifts focus to semiconductor materials

Resona Holdings is intensifying its focus on semiconductor materials, following the sale of 16 businesses, Business Insider Japan reports. CFO Hideki Someya discussed the company's strategic shift towards semiconductor materials, aiming to capitalize on growing demand in the sector. The move aligns with Resona's broader strategy of business selection and concentration to enhance competitiveness.

Impact Resona's shift affects suppliers and partners in the semiconductor industry, potentially increasing demand for related materials and technologies.

Sources: Business Insider Japan ↗

Markets

Finance

Japan ready for FX market intervention, Katayama says

Japan's Finance Minister Katayama stated that Tokyo is prepared to respond to disorderly movements in the foreign exchange market, according to JapanTimes. This statement comes as the yen faces volatility, and Tokyo intends to act in line with its agreement with Washington. The announcement underscores Japan's commitment to maintaining market stability amid global economic uncertainties.

Impact Exporters and importers dealing in yen face potential currency intervention, affecting transaction costs and pricing strategies.

Sources: JapanTimes ↗

Nothing significant reported today in Regulation · Disruption · Internal tension · Trade · Politics.