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Listed on a ransomware leak site

Pertamina

pertamina.com

Pertamina was listed on the RansomHouse and The Gentlemen and Kill Security leak site on Dec 20, 2024. Brandefense has recorded 3 separate claims against it. Information as of Oct 19, 2026.

Updated continuously · figures as of Oct 19, 2026
Claimed by
RansomHouse, The Gentlemen, Kill Security
First listed
Dec 20, 2024
Claims recorded
3

3 Leak-Site Claims.

RansomHouseConfirmed claim
Posted on the leak site
Aug 21, 2026
Collected by Brandefense
Sep 17, 2026
Data claimed
Not stated

Posted again 1 time by the same group

Leak-site post text, written by the group
Pertamina is an energy company primarily in the oil and gas sector. The company provides services for new and renewable energy, and other activities related to or supporting business activities in energy.
The GentlemenConfirmed claim
Posted on the leak site
Jul 31, 2026
Collected by Brandefense
Jul 31, 2026
Data claimed
Not stated
Leak-site post text, written by the group
pertamina.com REV - $23.2 Billion zoominfo.com/c/pt-pertamina/[removed] Pertamina is an energy company primarily in the oil and gas sector. The company provides services for new and renewable energy, and other activities related to or supporting business activities. We have taken NDA files, HR DATA, user data, employee data, technical drawings, models, bank accounting tax legal statements, SCADA documents, confidential files, photographs of work, screenshots and much more the total data volume is more than 1.2TB+ 1200 GB+. Pertamina is Indonesia’s state-owned integrated energy corporation…
Kill SecurityConfirmed claim
Posted on the leak site
Dec 20, 2024
Collected by Brandefense
Jul 12, 2025
Data claimed
Not stated

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Figures as of Oct 19, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.