Okuma’s German Subsidiary Hit by Ransomware Attack

Japanese machine tool manufacturer Okuma has confirmed that its German subsidiary, Okuma Europe GmbH (OEG), was hit by a ransomware attack. The company is working with external experts to investigate the incident and restore affected systems.

On September 20, 2025, OEG discovered that intruders had compromised its servers, encrypting internal data with ransomware. Okuma reported that confidential corporate data and employee personal information may have been exposed, and the company has notified local police and authorities in Germany.

Restoration efforts are ongoing as the company investigates the cause and scope of the breach. Okuma emphasized that, as of September 25, 2025, no other subsidiaries or parts of the wider Okuma Group have been impacted.

The incident highlights the growing risks manufacturers face from ransomware and underscores the importance of robust cybersecurity measures in industrial environments.

Importantly, Okuma acted quickly to confirm the ransomware incident and publicly disclose it through an Okuma Press Release. This transparent response reflects the company’s professionalism and reinforces Japan’s reputation for accountability and resilience in the face of cyber threats.