Summary
On July 31, 2026, the ransomware group TheGentlemen announced a cyberattack on Pertamina (pertamina.com), a leading energy corporation headquartered in Singapore. The attack resulted in a massive breach involving over 1.2TB of highly sensitive data, threatening the integrity of the company’s operations and its standing in the global energy sector.
Incident Report
| Field | Details |
|---|---|
| Target | Pertamina |
| Domain | pertamina.com |
| Country | Singapore |
| Attacking Group | TheGentlemen |
| Date Reported | July 31, 2026 |
| Threat Actor Statement | “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.” |
Recommended Security Actions
Ransomware attacks are increasingly targeting both enterprise and mid-sized organizations across all sectors. The following steps are critical to reduce impact and prevent future incidents:
- Monitor continuously: Use DeXpose’s dark web and infostealer monitoring platform to detect breached credentials, leaked databases, and threat actor chatter in near real-time—before damage spreads internally.
- Conduct a compromise assessment: Immediately initiate a full incident review to determine how attackers infiltrated your network, what data may have been exfiltrated, and whether any persistence mechanisms remain active.
- Validate your backups: Ensure that your backups are current, encrypted, and stored offline. Utilize immutable backup solutions to defend against ransomware encryption and deletion attempts.
- Apply threat intelligence: Integrate external threat feeds, including DeXpose-provided indicators of compromise (IOCs), into your SIEM or XDR platforms for real-time alerting and correlation.
- Harden employee defenses: Run phishing simulations and enforce multi-factor authentication (MFA) across all access points. Attackers often exploit weak or reused credentials sourced from the dark web.
- Engage professional response teams: Involve cybersecurity incident response experts, threat analysts, and legal counsel before initiating any dialogue with ransomware groups or ransom brokers.
How DeXpose Helps You Stay Ahead
At DeXpose, we specialize in early detection and proactive defense. Our hybrid threat intelligence solution combines automated deep/dark web crawling, Telegram and forum monitoring, and real analyst verification to deliver:
- Continuous scanning of ransomware group leak sites, stolen credential markets, and malware log dumps
- Timely alerts for breaches linked to your domains, email addresses, and key personnel
- Intelligence correlation that connects leaked credentials to infostealer malware infections, often weeks before a public ransom demand
- Real-time visibility into supply chain and third-party exposures through passive surveillance of dark web channels
Don’t wait for public disclosure or ransom notices—gain visibility into your cyber exposure now.
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Disclaimer
DeXpose does not engage in the exfiltration, hosting, redistribution, or purchase of stolen data. All breach information reported here is collected from publicly accessible dark web sources and threat intelligence platforms.
Our mission is to equip organizations with early-warning indicators, contextual threat insights, and actionable intelligence that help them secure their digital assets against evolving cyber threats.
