Disclosure context

About exitium

Exitium is an emerging ransomware group that was first observed in March 2026, operating with apparent financial motivations based on their limited but documented attack patterns. Given the recent emergence and limited public documentation, specific details about the group's country of origin, organizational structure, or potential affiliations remain unclear to security researchers and law enforcement agencies. The group's attack methodology and technical capabilities have not been extensively documented due to their recent appearance and small victim count, though they appear to target specific sectors rather than conducting widespread campaigns. Exitium has been observed targeting organizations in the United States and Brazil, with a particular focus on the agriculture and food production sector as well as public sector entities, suggesting possible strategic targeting of critical infrastructure. The group remains active as of their recent emergence, though their limited victim count of two documented cases indicates they are either highly selective in their targeting, newly operational, or operating at a smaller scale compared to established ransomware groups. The group has been linked to 8 public disclosures across our corpus. First observed on a leak site on March 17, 2026; most recent post May 16, 2026. The operation is currently active.

Timeline of this disclosure

March 29, 2026Ming Hwei Energy listed by exitiumon the group's public leak site

Ransom demanded: $5M

Sector and geography

This disclosure adds to ransomware activity in the Energy sector, which has 374 disclosures indexed across all operators we track. Geographically, Ming Hwei Energy is reported in TW, a country with 46 ransomware disclosures in our corpus.

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.

Ransomware victim disclosure

← All victims

Ming Hwei Energy Co., Ltd.

listed as Ming Hwei Energy · Claimed by exitium · listed 2 months ago

$5M

Ransom

demanded

52d

Age

since listed · data leaked

Status timeline

Listed
Mar 29, 2026
Data leaked

At a glance

Group: exitium
Status: Data leaked
Country: TW
Sector: Energy
Listed on leak site: Mar 29, 2026
Ransom demanded: $5M

About the victim

AI dossier — public-source company profile

Ming Hwei Energy Co., Ltd. is a small Taiwanese private B2B manufacturer of solar cells with 11–50 employees and revenues under $5M. The company is part of a larger Taiwanese fastener conglomerate and operates in a niche solar manufacturing segment where it faces significant pricing competition from Chinese producers.

Industry: Solar Cell Manufacturing
Address: Taiwan
Employees: 11-50

Attack summary

Severity: medium — Encryption of infrastructure is confirmed, and the status is data_published, but no specific sensitive data categories (PII at scale, financial records, regulated data) are itemised, and the company is small-scale with limited publicly stated data exposure detail.

The exitium group claims to have encrypted Ming Hwei Energy's infrastructure and has published data as disclosed; a $5M ransom was demanded.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Encrypted infrastructure data

What the group claims

Zoominfo: https://www.zoominfo.com/c/ming-hwei-energy-co-ltd/446006038 A small private B2B firm (11–50 staff, <$5M revenue), part of a Taiwanese fastener conglomerate. Manufacturer of solar cells in a niche where Taiwanese firms are consistently undercut by Chinese pricing. Their infra encrypted.

Sources

Leak posthttp://m3ksukzn2glzfdvlusohril7n3iyk4z4fudf6mm22lwhpbpt5aiee5qd.onion#Ming%20Hwei%20Energy

Source

Indexed 2 months 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.