2026 Pertamina — RansomHouse claim; ~6 GB internal docs (unverified)
Data compromised
Actor claim (unverified): >6 GB internal docs across departments (~50 user accounts cited by researcher reviewing samples) — financial/HR, maintenance, refinery/pipeline ops, investigations, cybersecurity/risk; pension file ~1,600 names/DOB/employee numbers alleged. Distinct volume from ~1.2 TB forum/TheGentlemen claims. Company confirmation not located.
Technical writeup
Unverified leak-site / extortion claim — RansomHouse listing for Pertamina surfaced ~September 17, 2026 (claimed attack Aug 21). SearchInform / Vaksincom researcher review of published samples estimated >6 GB across multiple departments. Pertamina confirmation not located. Catalog separately from pertamina-forum-sale2026. recordsAffected 0; companyConfirmed false.
Root cause
Unverified RansomHouse ransomware/extortion leak-site claim (observed mid-Sep 2026)