Skip to main content
Darkfield

Ransomware victim disclosure

← All victims

Vietnam Electricity (EVN) / Tập đoàn Điện lực Việt Nam

listed as Vietnam Electricity(EVNHANOI) · Claimed by Emperador · listed 1 day ago

1d
Age
since listed · data leaked

Status timeline

  1. ListedAug 22, 2026
  2. Data leakeddate unknown

At a glance

Group
Emperador
Status
Data leaked
Country
Vietnam
Sector
Energy & Utilities
Listed on leak site
Aug 22, 2026

About the victim

AI dossier — public-source company profile

Vietnam Electricity (EVN) is Vietnam's largest and sole national electric utility, fully state-owned since 1994. Operating as a vertically integrated monopoly, EVN is responsible for nationwide generation, transmission, and distribution of electricity, international power exchanges, and major power plants. The company is currently undertaking grid digitalization and transitioning Vietnam's energy mix from coal toward renewable sources.

Industry
Energy & Utilities — Electric Power Generation, Transmission & Distribution
Founded
1994

Attack summary

Severity: critical — Confirmed exfiltration of 300GB+ containing millions of records of personally identifiable information (customer details, account records) from Vietnam's critical national electricity infrastructure and sole power utility. This represents both regulated data at massive scale and potential operational/national security implications for a state-owned critical infrastructure operator.

The Emperor group claims to have exfiltrated approximately 300GB of data from EVN, comprising customer details, subscription records, account information, and miscellaneous operational data. The group has published the data and is negotiating a ransom.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Customer personal details (13.36 million records)
  • Subscription records (6.99 million)
  • Account records (2.26 million)
  • Miscellaneous operational data

What the group claims

Vietnam Electricity (EVN), legally known as Tập đoàn Điện lực Việt Nam, is the largest power company and the sole national electric utility in Vietnam. Fully owned and controlled by the Vietnamese government since its inception in 1994, EVN operates as a vertically integrated monopoly responsible for the nationwide generation, transmission, and distribution of electricity, as well as international power exchanges. The group oversees all major power plants and regional distribution subsidiaries, including EVNHANOI. Serving as a crucial pillar for Vietnam's macroeconomic stability and industrial expansion, EVN is currently undertaking extensive grid digitalization and spearheading the national transition from coal dependency toward clean and renewable energy integration. The data content exceeds 300GB, comprising 13.36 million rows of customer details, 6.99 million subscriptions, 2.26 million account records, and other miscellaneous data.The price is open to negotiation. Session:054e5b6edf03e8ba012626b5dcd83a7dd47a046760bcd9b9b32d02a039d24d9608 Tox:852E34CBEBA2D40FD21BAC9F9E588B5194DBA9F31CACF9ECE316403120BE18765D22A8A453C4 [Size: 300.0 GB | Sector: Government, Energy]

Sources

Source

Indexed 1 day ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

Disclosure context

About emperador

Emperador is a ransomware group first observed in August 2026 with an apparent financial motivation, though its limited operational history makes comprehensive attribution difficult at this time. Based on available data, the group has recorded at least one confirmed victim, with targeting concentrated in the Philippines and a demonstrated focus on the Government and Defense sector, suggesting either opportunistic targeting or a deliberate interest in sensitive public-sector data. Specific details regarding initial access vectors, encryption methodologies, and tooling have not been publicly documented by CISA, the FBI, Mandiant, or other reputable threat intelligence sources as of this profile's compilation, and no affiliation with known ransomware-as-a-service ecosystems or established threat actor clusters has been formally established. No notable high-profile campaigns, record ransom demands, or law enforcement actions have been publicly attributed to this group, which is consistent with its nascent operational timeline and minimal victim count. Given its very recent emergence and limited observed activity, Emperador should be considered an emerging and uncharacterized threat requiring continued monitoring, particularly by organizations operating within Philippine government and defense environments. The group has been linked to 9 public disclosures across our corpus. First observed on a leak site on August 12, 2026; most recent post August 23, 2026. The operation is currently active.

Timeline of this disclosure

  • August 22, 2026Vietnam Electricity(EVNHANOI) listed by emperadoron the group's public leak site

Other recent disclosures by emperador

emperador has been linked to 9 public victims on Darkfield. A sample of the most recent:

See the full emperador dossier →

Sector and geography

This disclosure adds to ransomware activity in the Energy & Utilities sector, which has 168 disclosures indexed across all operators we track. Geographically, Vietnam Electricity(EVNHANOI) is reported in Vietnam, a country with 16 ransomware disclosures in our corpus.

If your organisation is affected

A listing by emperador means Vietnam Electricity(EVNHANOI) appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Monitor for the data appearing on emperador's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.