A hacking group has leaked more than 200,000 files containing personal information from frozen food giant Nichirei [1].
The breach highlights the vulnerability of critical food supply chains to ransomware attacks, where the threat of public data exposure is used to pressure companies into paying ransoms.
The disruption began on July 13, 2026, when Nichirei experienced a major system failure [2]. The attack forced the company to suspend shipping operations for several days [3]. Following the outage, a group calling itself RansomHouse claimed responsibility for the breach on July 21, and said they had access to personal information and business transaction materials [4].
By Aug. 10, security analysts from the firm S&J reported that at least 200,000 files had been published on the dark web [1]. The analysts said the leaked data is believed to include private personal information [1]. While some reports identify RansomHouse as a Russian-linked group [5], other sources noted that the nationality of the hackers has not been officially confirmed [6].
The attackers used a ransomware strategy, encrypting systems to halt business and then leaking data to increase leverage for a payout [7, 8]. This tactic targets the reputation and legal standing of the victim company to force a settlement.
When asked about the ongoing leaks, a Nichirei spokesperson said the company is aware that additional information is being made public but declined to provide further comment [9].
“At least 200,000 files have been published, and it is believed that personal information is included.”
This incident demonstrates a shift in ransomware tactics toward 'double extortion,' where hackers not only lock systems but also exfiltrate data to ensure payment. For a logistics-heavy company like Nichirei, the temporary suspension of shipping operations creates immediate financial loss, while the leak of 200,000 files creates long-term legal and regulatory liabilities regarding data privacy laws.
