Jochu announced that it detected a cyberattack on 5 August 2026 involving unauthorized access by unidentified hackers, which caused temporary downtime across the company and its significant subsidiaries. In response, the company activated its cybersecurity incident response procedures, engaged external cybersecurity experts, and began comprehensive security assessments before restoring affected systems from backups. According to the preliminary assessment, the incident has not had a material impact on business operations, and the company plans to strengthen its cybersecurity controls and governance measures after completing remediation of the identified vulnerabilities.