Was Unknown hit by ransomware?

Unknown was listed by the Gammax ransomware operation (United States), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Gammax ransomware group?

Gammax is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Unknown breach?

Gammax published data attributed to Unknown (~171GB), around 51,783 files records. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Unknown

Claimed by Gammax · listed 7 days ago

171GB

Data size

51,783 files records

Age

since listed · data leaked

Status timeline

ListedAug 11, 2026
Data leakeddate unknown

At a glance

Group: Gammax
Status: Data leaked
Country: United States
Listed on leak site: Aug 11, 2026
Data size: 171GB
Records: 51,783 files

About the victim

AI dossier — public-source company profile

A company located in Houston, Texas. No public website or identifying information is available; the victim name remains unknown.

Address: 10651 Harwin Dr. Ste 710, Houston, TX 77036, United States

Attack summary

Severity: medium — Confirmed exfiltration of a substantial volume of data (171GB, 51,783 files) with data published, but without details on the nature or sensitivity of the files, regulatory applicability, or business criticality, severity cannot be elevated to high or critical.

Gammax claims to have exfiltrated 51,783 files totaling 171GB of data from the victim.

medium

Data the group says was taken

AI dossier — extracted from the leak post

51,783 files (unspecified content)

What the group claims

Company located at 10651 Harwin Dr. Ste 710, Houston, TX 77036, United States

The leak post

captured from the group's site

10651 Harwin Dr. Ste 710, Houston, TX 77036, United States 
Access the complete dataset including 51,783 files (171GB)

Data the group says was taken

files

Screenshot of the leak post

Sources

Leak posthttp://gammax6w3dkfdjfrjthtmqzsioue52vzy6lz54qy6jcvmogfpubutjyd.onion/post/AFBmWr4p81arGYJQASFrgaRwBcLLK1Ta

Source

Indexed 7 days 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.

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Disclosure context

About Gammax

Gammax is a ransomware group first observed in July 2026 with an apparently financial motivation, though limited public documentation exists given its nascent operational history and very low victim count. With only two known victims on record, the group remains largely uncharacterized by major threat intelligence organizations such as CISA, FBI, Mandiant, or comparable research bodies, and no definitive attribution regarding country of origin, affiliation with established threat actors, or ransomware-as-a-service infrastructure has been publicly established at this time. Based on available victimology data, Gammax has demonstrated a targeting preference for organizations in Canada and Colombia, with activity concentrated in the Energy and Utilities and Retail and E-Commerce sectors, suggesting either opportunistic targeting of these verticals or a deliberate focus on industries where operational disruption may increase pressure to pay. No specific initial access vectors, encryption methodologies, or extortion tactics have been publicly attributed to this group by authoritative sources, and no notable high-profile campaigns, record ransom demands, or law enforcement actions have been publicly documented against them. Given its July 2026 emergence and minimal victim footprint, Gammax should be considered an emerging and closely monitored threat, though its current operational status, true capabilities, and trajectory remain insufficiently documented to support more definitive analytical conclusions. The group has been linked to 15 public disclosures across our corpus. First observed on a leak site on July 30, 2026; most recent post August 14, 2026. The operation is currently active.

Timeline of this disclosure

August 11, 2026Unknown listed by Gammaxon the group's public leak site

Data size: 171GB
Records: 51,783 files

Other recent disclosures by Gammax

Gammax has been linked to 15 public victims on Darkfield. A sample of the most recent:

See the full Gammax dossier →

Sector and geography

Geographically, Unknown is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Gammax means Unknown 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.
Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
Monitor for the data appearing on Gammax'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.