Sumitomo Electric Bordnetze
auroraThis record tracks a ransomware attack claimed by the aurora group against Sumitomo Electric Bordnetze. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Dark Eye.
Window Zero
EXPOSURE GAPWindow Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.
Attack Summary
[electric] *** SE (SEBN) — a Wolfsburg-headquartered subsidiary of Sumitomo Electric Industries (TSE:5802, ~$31B group revenue), employing approximately 40,000 people across 14 countries. Exfiltrated 1.1 terabytes of data from five manufacturing sites. SEBN Moldova (103 GB) — HR, payroll, personal tax records, competition-council litigation files, home directories SEBN Ukraine (115 GB) — HR/salary, Audi B9 project data, process documentation, including displaced-worker records for Ukrainian IDPs SEBN Tunisia — Fejja (191 GB + 493 GB shared) — passport copies, email archives (671 MB PST), quality/FMEA data, finance SEBN Slovakia (268 GB) — the crown jewel: Citibank corporate banking infrastructure including the TESTKEY authentication system, IBAN registries, daily bank statements, SAP salary-payment files, and years of department email archives The dataset contains 173,000 Excel files, 149,000 PDFs, 2,500 CAD engineering drawings, 2,500 Outlook messages, 1,500 FMEA/PPAP quality files, and 9 Outlook PST archives.
Leak Screenshots
1 CAPTUREDCaptured directly from the operator's leak site by our collector, last checked 2026-09-02. Verdict evidence: [M1] Files (6) section with downloadable files like "6_LISTE_DE_PLATA_BANCA_0TP_IANUARIE_20.pdf" and "CITL_salary.txt"
Capture history — 4 day(s) tracked. Content is locked.