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JAG Group

listed as jaggroup.com UPDATE-FULL DATA DUMP NEW LINK · Claimed by Stormous · listed 9 days ago

9d
Age
since listed · data leaked

Status timeline

  1. ListedJun 24, 2026
  2. Data leakeddate unknown

At a glance

Group
Stormous
Status
Data leaked
Listed on leak site
Jun 24, 2026

About the victim

AI dossier — public-source company profile

JAG Group is a company operating under the jaggroup.com domain. No public website or detailed company information is available from open sources.

Attack summary

Severity: critical — Confirmed exfiltration of plaintext credentials, financial data (Dynamics GP, reports), and at-scale employee/corporate identity information. The inclusion of Active Directory credentials and financial systems represents high-value regulated/sensitive business data.

Stormous claims to have exfiltrated a complete database containing corporate emails, Active Directory credentials with plaintext passwords, Microsoft Dynamics GP financial systems, software licenses, project files, and SQL server configurations. The group has published compressed archives and database files as proof.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Corporate email accounts (@jaggroup.com)
  • Active Directory domain credentials and plaintext passwords
  • Microsoft Dynamics GP financial databases
  • Financial reports
  • Software license keys
  • System configuration files
  • SQL server connection data
  • Project management spreadsheets
  • User listings
  • Purchasing and sales logs
  • Database files (IM.mdb)
  • Backup archives (zBackups.zip)

What the group claims

Full database containing corporate emails (⁠@jaggroup.com⁠), Active Directory domain logins, and clear plain-text passwords.Complete Microsoft Dynamics GP databases, software license keys, financial reports, and system configuration Multiple compressed archives (⁠zBackups.zip⁠, ⁠wetransfer⁠ packages), SQL server connection data, and ⁠IM.mdb⁠ database files.Internal project management sheets (⁠Jag Project.xlsx⁠), user listings, purchasing, and sales import logs.

Source

Indexed 9 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 Stormous

Stormous is a relatively new ransomware group that emerged in March 2022, operating primarily with financial motivations and has claimed responsibility for attacks against at least 165 victims across multiple countries and sectors. The group's country of origin remains unclear from publicly documented sources, though their operational patterns suggest they may operate as an independent entity rather than a established ransomware-as-a-service model. Limited public documentation from major security firms indicates the group employs common ransomware tactics, though specific details about their initial access vectors, encryption methods, and data exfiltration practices have not been extensively detailed in reports from CISA, FBI, or major threat intelligence providers. Their targeting appears geographically diverse with a focus on Spain, the United States, France, UAE, and Brazil, while showing particular interest in technology, hospitality and tourism, government, and business services sectors, though many of their victims span unspecified industries. As of current reporting, Stormous appears to remain an active threat, though the limited public documentation suggests they operate as a lower-tier ransomware group compared to more prominent families that receive extensive coverage from major security research organizations. The group has been linked to 245 public disclosures across our corpus. First observed on a leak site on March 22, 2022; most recent post July 1, 2026. The operation is currently active.

Timeline of this disclosure

  • June 24, 2026jaggroup.com UPDATE-FULL DATA DUMP NEW LINK listed by Stormouson the group's public leak site

Other recent disclosures by Stormous

Stormous has been linked to 245 public victims on Darkfield. A sample of the most recent:

See the full Stormous dossier →

If your organisation is affected

A listing by Stormous means jaggroup.com UPDATE-FULL DATA DUMP NEW LINK 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 Stormous'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.