[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f69NTeFERabTZqOp3t3v0tptdfQoaq8Fp2DUqWj2yAT8":3},{"lesson":4},{"id":5,"slug":6,"article_id":7,"title":8,"body":9,"prevention":10,"framework_refs":11,"framework_notes":19,"status":20,"created_at":21,"published_at":22,"article":23,"tags":27,"podcasts":40,"controls":41},"564d4ef8-dffa-401e-81f0-ce19a2006dfe","japanese-energy-firm-loses-backup-drive-with-109-million-customer-records","63e68851-4e90-493f-8ea9-a24b91c361cd","Japanese Energy Firm Loses Backup Drive with 10.9 Million Customer Records","Kyushu Electric Power Co. suffered a severe data breach when a backup drive containing 10.9 million customer records disappeared from a supposedly secure server room cabinet that was found unlocked. This incident highlights critical failures in physical security controls and data protection practices. The breach demonstrates how inadequate physical safeguards can render encryption and other technical controls meaningless, potentially exposing millions of customers to identity theft and privacy violations. Organizations must treat backup media with the same security rigor as production systems, especially when containing sensitive personal information.","**Immediate actions:**\n- Implement dual-control access requiring two authorized personnel for server room entry\n- Encrypt all backup media and store encryption keys separately from the physical media\n- Conduct immediate physical security audit of all data storage locations\n\n**Long-term improvements:**\n- Deploy automated monitoring systems with alerts for cabinet access and environmental changes\n- Establish secure off-site backup storage with professional data management services\n- Implement data minimization policies to reduce the volume of personal data in backups\n\n**Detection and monitoring:**\n- Install access logging systems that track who accessed server rooms and when\n- Perform regular inventory audits of all backup media with documented chain of custody",[12,13,14,15,16,17,18],"CIS Control 3.3","CIS Control 3.12","NIST SP 800-53 PE-3","NIST SP 800-53 MP-4","GDPR Article 32","GDPR Article 5(1)(f)","ISO 27001 A.11.1.1",{},"published","2026-06-12T00:20:28.857889+00:00","2026-06-12T00:20:28.583+00:00",{"id":7,"url":24,"slug":25,"title":26},"https:\u002F\u002Fwww.bleepingcomputer.com\u002Fnews\u002Fsecurity\u002Fjapanese-energy-firm-loses-drive-with-data-of-109-million-clients\u002F","japanese-energy-firm-loses-drive-with-data-of-10-9-million-clients-c64219","Japanese energy firm loses drive with data of 10.9 million clients",[28,34],{"id":29,"name":30,"slug":31,"description":32,"color":33},"1ec88fde-2d0f-4ed8-932a-33f5ccc0fdc7","Access Control","access-control","Excessive privileges, missing MFA, weak auth","#f97316",{"id":35,"name":36,"slug":37,"description":38,"color":39},"c8b843a5-d5a7-41d1-8d3b-cabded09d2ef","Data Protection","data-protection","Unencrypted data, missing DLP, poor classification","#3b82f6",[],[42,46,50],{"slug":43,"name":44,"problem":45},"data-loss-prevention","Data loss prevention (DLP)","Sensitive data cannot quietly leave by email, upload, USB stick or AI tool.",{"slug":47,"name":48,"problem":49},"encryption-key-management","Encryption and key management","Stolen data stays unreadable, and the keys stay under your control.",{"slug":51,"name":52,"problem":53},"immutable-backup","Immutable backup and recovery","Ransomware cannot delete or encrypt your way back."]