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Pertamina

thegentlemen

This record tracks a ransomware attack claimed by the thegentlemen group against Pertamina. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.

Window Zero

EXPOSURE GAP

Window 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.

-69days
t1 · Published t2 · Disclosed
Jul 31, 2026May 23, 2026
Country
Indonesia
Business Category
Energy
Employees
+1000
Discovered
2026-07-31
Published
July 31, 2026
Disclosed / Notified
May 23, 2026
Victim ID
YA0uTNHiuuO3

Attack Summary

pertamina.com REV - $23.2 Billion zoominfo.com/c/pt-pertamina/191250883 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, operating across upstream, downstream, gas, and renewable energy sectors. With over six decades of operation, it is a primary driver of national energy sovereignty and consistently ranks among the Fortune Global 500 companies.

Leak Screenshots

SAMPLE

Proof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.

file_tree.png
finance_2024.xlsx
passport_scan.jpg
contract_signed.pdf
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Dark Web Exposure

Findings for pertamina.com — indexed by HaveIBeenRansom.
27,850
found in Infostealer logs
2,995+
found in Traditional breaches
5+
found in Ransomware leaks
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+ 17 more leak sources locked
Leak volumes are locked
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