Excerpt from SecurityWeek Article, Published on July 9, 2025

Japan-based Nippon Steel Solutions, a subsidiary of Nippon Steel, has reported a significant data breach resulting from a zero-day vulnerability in its network equipment. Detected on March 7, 2025, the incident has compromised sensitive information linked to employees, customers, and business partners. The exposed data may include names, job titles, phone numbers, business emails, and physical addresses.

This cyberattack on the logistics firm highlights growing concerns around third-party security risks and the need for a robust cybersecurity framework. Nippon confirmed that the breach was likely triggered by a third-party breach, which enabled attackers to exploit internal systems and extract confidential records.

While cloud services operated by the company remain unaffected, investigations are ongoing to determine if any of the data has surfaced on the dark web. Notably, this breach occurred weeks after ransomware group BianLian claimed to have stolen hundreds of gigabytes of data from Nippon Steel USA. Although Nippon has not verified any link between the two breaches, cybersecurity analysts remain cautious about potential connections.

In response, Nippon has implemented extensive damage control, including isolating compromised systems, enhancing ISO 27001 compliance protocols, and deploying new behavioral-based detection tools. The company has also restricted external access and rebuilt affected infrastructure from the ground up to prevent further exploitation.

The Nippon Express data breach serves as a critical reminder of the importance of proactive cybersecurity and regulatory compliance. Organizations in logistics and critical infrastructure sectors must continuously evaluate vendor dependencies, adopt international standards like ISO 27001, and ensure employee data remains protected.

To delve deeper into this topic, read the original SecurityWeek article.