# Ransomware Attack Disrupts Operations at Major Japanese Frozen Food Supplier

*Published July 24, 2026*
*Source: [https://www.darkreading.com/cyberattacks-data-breaches/ransomware-attack-japanese-frozen-food-chain](https://www.darkreading.com/cyberattacks-data-breaches/ransomware-attack-japanese-frozen-food-chain)*

## Executive Summary

Nichirei, a major Japanese frozen-food logistics firm, experienced a ransomware attack disrupting operations and affecting clients like KFC. While the company works to restore services, the incident underscores vulnerabilities in supply chains and the need for robust recovery measures.

## Article

Nichirei, a prominent Japanese frozen-food supplier and logistics company, recently faced a significant disruption in its operations due to a ransomware attack. This cyberattack, claimed by the Russia-linked group RansomHouse, caused a delay in shipments to major clients including Kentucky Fried Chicken franchises in Japan. The company has confirmed a breach but has provided limited details on the incident. However, Nichirei stated that it is collaborating with an external security firm to restore operations, with all logistics centers expected to return to normalcy within the week.

The attack highlights significant vulnerabilities within supply chains, a major concern for Japanese companies. According to the Information-technology Promotion Agency, ransomware and supply chain attacks are the top threats. Nichirei's logistics network, comprising 141 centers and about 7,000 refrigerated vehicles, underscores the potential for widespread impact from a single cyber event. This incident follows a similar attack on Japanese beer giant Asahi, which resulted in prolonged disruptions and financial losses.

Security experts emphasize the need for robust recovery practices beyond simple data backups. John Gallagher from Viakoo points out that severing networks is a necessary response to halt active threats, particularly in Japan's just-in-time logistics model. The Active Cyber Defense Act requires incident reporting and government support, but companies must prepare independently for swift recovery. Additionally, Nichirei confirmed that personal data was stolen, with some published online, signaling the need for enhanced data protection measures.

As the investigation continues with the aid of external security firms and coordination with police authorities, Nichirei refrains from disclosing further details. The incident serves as a reminder of the critical importance of cybersecurity resilience in maintaining operational continuity and protecting sensitive information.