RansomHouse Cyberattack Disrupts Nichirei Operations and Supply Chain

On July 13, 2026, the hacker group RansomHouse launched a cyberattack on Nichirei Corp., a major Japanese frozen food manufacturer, leading to significant system disruptions. The group claimed responsibility on the dark web, indicating they had stolen confidential data and demanded a ransom to prevent its release. The attack has severely impacted Nichirei's operations, affecting around 5,000 business partners, including major retailers and restaurants like KFC Japan. Although Nichirei is working with security firms to assess the damage and restore operations, the company has not disclosed whether a ransom has been paid. The incident highlights vulnerabilities in the cybersecurity measures of critical supply chains in Japan. RansomHouse is known for its ransomware tactics and has previously targeted various sectors, including medical institutions and infrastructure.

Key Points: • RansomHouse claimed responsibility for a cyberattack on Nichirei, disrupting operations. • The attack has affected around 5,000 business partners, including major retailers and restaurants. • Nichirei is investigating the incident but has not confirmed if a ransom was paid.