Pertamina EP Listed by ransomexx Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
The Pertamina EP Listed by ransomexx Ransomware Group (reported September 9, 2021) is an unverified claim; the data involved is undisclosed belonging to roughly unknown people. If you have an account with them, your information may now be circulating on the open web and with data brokers. Here’s exactly what happened, how to check if you were affected, and what to do next.
Inside the incident
The only confirmed detail is the public listing itself. RansomEXX placed Pertamina EP on its site and stated that internal data had been removed. No independent confirmation of the volume of files, the encryption of systems, or any ransom demand has been made public. The date the data were first accessed, the duration of the intrusion, and whether any material was later published are all undisclosed.
The group behind it: ransomexx
RansomEXX is a ransomware operation that has been publicly active since at least 2020. It is known for a double-extortion approach in which data are copied before encryption and then threatened with disclosure if a ransom is not paid. The group has listed government agencies, manufacturers, and other large organisations on its leak site in the past. In this case the listing constitutes the group’s claim; no additional statements or proof of the theft have been verified beyond the site entry.
Pertamina EP and its sector
Pertamina EP operates within Indonesia’s upstream oil and gas industry as part of the state-owned Pertamina group. Companies in this sector routinely hold operational records, geological data, contractor information, and employee records. A breach at such an organisation can affect both commercial operations and, in some cases, information that touches national energy infrastructure.
The information in question
The listing refers only to “internal files.” No inventory of specific data categories has been released. Organisations of this type commonly store employee identification details, financial records, and technical documents related to exploration and production. Without further disclosure it is not possible to state which of these categories, if any, were taken.
What's at stake
Exposure of internal operational files could create competitive or security concerns for the company and its partners. If employee or contractor records are involved, individuals may face risks of identity misuse or targeted phishing. Because the exact scope remains unknown, the practical impact on any specific person or system cannot yet be quantified.
What to do if you're exposed
Anyone who works or has worked with Pertamina EP or its contractors should watch for unusual account activity and enable multi-factor authentication on any associated services. Monitoring credit files or official identity registers, where available, provides an additional layer of detection. Readers can also run a free exposure scan of their email address against known breach data to check for prior appearances in public listings.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
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Publicly posted by ransomexx — unverified claim, pending independent verification
Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.