Ming Hwei Energy

exitium listed this organization on its leak site on Mar 29, 2026.

Listing date
Mar 29, 2026
Attack date
Mar 29, 2026
01

Listing text

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.

02

About the group

exitium posted its first listing on Mar 17, 2026 and has listed 6 organizations to date.

Exitium is a data extortion group first observed in early 2026, operating a Tor-based double extortion site and targeting victims via bulk data exfiltration followed by public naming-and-shaming, with known victims including a Brazilian agro-industrial firm and a US county appraisal district.

03

Learning center

What does this listing mean?

Ransomware groups move data out of the organization before encrypting systems and threaten to publish it if the ransom is not paid. This method is called double extortion.

The listing shows that the group claims to have targeted the organization. Whether the data was published is shown by the later status of the listing.

What should you do if your organization is listed on a leak site?
  1. Record the listing and any published sample files; do not visit the leak site from the corporate network.
  2. Isolate affected systems and preserve logs without deleting them.
  3. Determine which data left the organization; if personal data is involved, review notification obligations with your legal team.
  4. Make any decision about the ransom demand together with legal, management and incident response.
  5. Do not bring systems back online before the attacker’s entry point is closed.
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Customer intelligence on top of Infostealer Detection: leaked accounts of end users who sign in to your site.