Cybersecurity Newsletter for July 2026

🚨 Latest Incidents

Nichirei hit by cyberattack

Nichirei, one of Japan’s largest food and cold-chain logistics companies, suffered a cyberattack that disrupted warehouse operations and deliveries across Japan.

📖 Read more

• Official announcement: https://www.nichirei.co.jp/
• Mainichi: https://mainichi.jp/english/articles/20260717/p2g/00m/0bu/034000c
• SecurityWeek: https://www.securityweek.com/cyberattack-disrupts-operations-of-japanese-frozen-food-giant-nichirei/

KDDI confirms major email system breach

KDDI disclosed unauthorized access to its ISP email platform, potentially exposing millions of email accounts.

📖 Read more

• Official announcement: https://newsroom.kddi.com/
• The Japan Times: https://www.japantimes.co.jp/business/2026/06/24/companies/kddi-data-breach-cyberattack/
• SecurityWeek: https://www.securityweek.com/12-million-impacted-by-data-breach-at-japanese-telco-kddi/

⚠️ Security Alerts

Microsoft July Security Updates

Microsoft released security updates addressing multiple vulnerabilities affecting Windows, Office and Edge.

📖 Read more

• Microsoft Security Response Center: https://msrc.microsoft.com/update-guide/
• IPA Security Alerts: https://www.ipa.go.jp/security/
• JPCERT/CC Alerts: https://www.jpcert.or.jp/

APT-C-60 Activity Update

JPCERT/CC published updated analysis on the APT-C-60 threat group targeting organizations in Japan.

📖 Read more

• JPCERT/CC Blog: https://blogs.jpcert.or.jp/
• JPCERT/CC: https://www.jpcert.or.jp/

🐞 New Vulnerabilities

Recent JVN advisories include:

• Drupal AI Agents Plugin
• FeliCa IC Chips
• LINE for iOS
• Tera Term
• Ricoh Web Image Monitor

📖 Read more

• JVN: https://jvn.jp/en/
• JVN Japan: https://jvn.jp/

💡 Security Tip

✅ Apply the latest security patches.

✅ Enable MFA for privileged accounts.

✅ Review internet-facing servers, VPNs and cloud services. BBHunt Japan

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