Marine Foods Express LTD listed on Qilin ransomware leak site

• Ransomware group: Qilin
• Country: Japan
• Sector: Agriculture and Food Production
• Announcement date: November 19, 2025

Qilin ransomware group claims breach of Marine Foods Express LTD

The Qilin ransomware group has listed Marine Foods Express LTD on its dedicated leak site, alleging that the organization has been the victim of a data breach. This announcement, made on November 19, 2025, marks a new development in the group's ongoing activities targeting various industries.

Details of the alleged attack

According to the claims made by the threat actor known as Qilin, the group successfully gained unauthorized access to the systems belonging to Marine Foods Express LTD. The group asserts that they have exfiltrated data from the organization's network during this intrusion. This specific type of listing is often utilized by ransomware groups as a component of double extortion tactics. In such scenarios, threat actors do not merely encrypt an organization's data to disrupt operations; they also steal sensitive information to use as leverage, threatening to publish or sell the stolen data if the ransom demands are not met.

The announcement was made on the same day as the claimed attack date, November 19, 2025. While the listing serves as a public notification of the group's intent, the specific technical methods used to breach the perimeter remain undisclosed in the available information.

Information regarding the leaked data

At this stage, there is no information regarding the nature of the alleged leaked data in the provided records. The listing does not specify the types of files, the volume of information, or the specific databases that were purportedly accessed by the attackers.

• No specific data types were identified in the listing.

About Marine Foods Express LTD

Marine Foods Express LTD is a Japan-based seafood supplier and food processing company. The company operates in the wholesale and distribution of various seafood products, serving as a key player in the food production and supply chain within its region.

Impact and organizational implications

This incident may lead to operational disruptions and reputational damage for Marine Foods Express LTD. Given the Qilin group's known double extortion tactics, there may be a risk of the leaked data being published or sold on the dark web. Such an outcome can have long-lasting consequences for an organization's standing in the market and its relationship with stakeholders.

Under Japanese data protection regulations, the organization may face mandatory data breach notification requirements. If the breach involves sensitive information, it could trigger legal and regulatory scrutiny. Furthermore, if employee or customer information has been compromised, it may create secondary risks such as identity theft and targeted phishing attacks for the affected parties. These secondary attacks often follow a breach, as stolen credentials or personal details are used to target individuals within the organization or its client base.

Considering that the Qilin group has been active since 2022 and targets various sectors, this incident highlights the ongoing necessity for organizations to review their cybersecurity measures. Organizations in the food production and distribution sector often rely on complex supply chains, making them potential targets for actors seeking to cause widespread disruption. Defensive strategies typically involve implementing robust access controls, continuous monitoring of network traffic, and ensuring that all software and systems are regularly patched to prevent unauthorized entry. Strengthening incident response plans is also a critical step to mitigate the impact of such events when they occur.